CoreWear Coremax Undershirts. Everything You Wanted To Know

For those curious about CoreWear Coremax shapewear undershirts, here’s some information that you may find helpful.

CoreWear Coremax Product Details

  • Website:
  • Price: $69 (3-pack for $179, 5-pack for $289)
  • Fabric: 90% Nylon / 10% Spandex
  • Style: Men’s shapewear, men’s slimming undershirt
  • Collar Styles: Crew Neck, V-Neck
  • Colors: White, Black
  • Capabilities: Slim your waist, improve posture, transform chest, define muscles
  • Construction: Seamless body, reinforced seams & neckline, breathable fabric


CoreWear slimming undershirt. White, crew neck
CoreWear undershirt. Posture support, Temperature control, lower back support
CoreWear slimming undershirt. Black.

CoreWear Product Video

Additional Info

CoreWear Coremax undershirts seem very similar to the now defunct men’s shapewear brand Equmen. It also resembles the Equmen copy-cat brand SVELTE by Sully. SVELTE’s website is no longer active, though it appears to still be available for purchase on Amazon.

The brand boasts an impressive 100-day trial. If you’re not satisfied with the undershirt for any reason, you can return it for free.

The CoreWear website shows over 250 reviews (and growing), with an average 4+ rating.

Note: The reviews begin in February 2019, but the website was registered in September 2019. The brand mentioned the Coremax undershirts were available for purchase on a different domain prior to the launch of the domain.

I can’t seem to locate any privacy policy, phone number, or physical address for them, but I’ve been in contact with them via email, and so far they have been responsive.

Have You Purchased a CoreWear Coremax Undershirt?

I haven’t tried one of their products yet, but I’m hoping to get one. When/if I do, I’ll update this article.

If you have any personal experience with CoreWear undershirts, or have purchased them from, please tell us about it in the comments below.

Some links on this page provide me with a commission at no additional cost to you. See my affiliate disclosures page for more info.

49 thoughts on “CoreWear Coremax Undershirts. Everything You Wanted To Know”

  1. Neve purchase from Corewear, I did so and the shirt didn’t fit, and then I demanded a return and refund but no response, I had sent them Over 6 emails but with no reply

  2. Hi there, first timer on your blog here :) Interesting content you have. I wanted to find out if the website is legitimate or some kind of scam. Not sure if you’re the right person to ask but I was trying to look up the company reviews, and came across your blog on Reddit. The TrustPilot reviews aren’t amazing – but thought of giving you a try and asking. Please help

    • heya a.p. — thanks for stopping by and for your question about corewear!

      i have had regular interactions with someone there, and he’s been pretty responsive. for a while i was told they were having some supply chain issues, and also some issues related to orders needing to be fulfilled by two different warehouses due to inventory issues.

      in addition, they were having some customer service issues (some documented here in the comments on this article). i haven’t had anyone come here and mention any customer service issues lately, and i know they made some changes a couple months back, so maybe they got everything worked out.

      as far a the corewear coremax undershirt goes, i can’t personally vouch for it because i haven’t yet tried it personally. i may see if i can pick one up, just so i have first-hand experience with it. though, i have heard good feedback about them from some folks.

      if you’re wondering if you should buy a coremax undershirt from corewear (their website), based on everything i know atm, i think you’re safe.

      of course worst case — if you have any issues ordering from them, where you are not satisfied with the product or service, you can always issue a chargeback on your credit card if they don’t issue a refund in a timely manner.

      good luck and keep me posted (:

  3. Unfortunately, I haven’t found Corewear to be responsive at all.

    I never received, my most recent purchase and spent a significant amount of money. I’ve contacted them three times and have received their automated response each time. I fear that they’ve taken my money and won’t fulfill my order. Since they don’t provide a phone number, it’s been frustrating.

    I will say that this is my 3rd order with them had they’ve fulfilled 2 of my orders, but it’s been a few weeks on an expedited order and they won’t respond.

    • heya kevin — so sorry to hear that.

      regarding your most recent (3rd) order:
      – on what date did you place the order?
      – on what date did you first contact them?
      – on what dates did you email them subsequently after the first email?

      from everything i know about them so far, i would be very surprised if they didn’t fulfill your order.

      if you post that information here, i can email my contact over at corewear and make them aware of the issue.

      • Thanks, Tug. I made placed an expedited order on 5/28.

        The funny thing is a forgot an item and accidentally placed an additional order via regular mail that arrived two days ago, which caused a red flag, because my expedited order never came. No tracking number was provided or a message to say the items had shipped. I did receive a confirmation for the order though and the order# is 21699.

        I sent my first email on June 2nd and a follow-up on June 3rd via email and via their contact us section of their website.

        I liked my original order so much, I was purchasing this one as a gift for a relative.

        Anyway, I’d be grateful for anything you can find out, given the amount that I shelled out. Thanks again.

      • heya kevin, thanks for the additional info — i’ve forwarded it to my contact at corewear.

        though, i do have a question — originally you said it had been “a few weeks on an expedited order”. but, 5/28 is only one (1) week ago and it’s a friday. that usually means, unless they specify otherwise, that the shipment would likely be sent out on monday 5/31. but that was memorial day, so no shipments would have gone out until 6/1.

        you also indicated you placed an additional order (i’m assuming on the same day of 5/28), via regular mail, but you’ve already received it?

        with the expedited delivery, did they set specific expectation that if you ordered it on friday 5/28, you’d get it on a specific date? just trying to make sure i have all the correct info (:

      • It’s a fair question, Tug. I wouldn’t have questioned whether the items were coming at all, if the subsequent purchase that I made (that I didn’t request expedited delivery for) hadn’t arrived earlier than the expedited delivery service, which said 2 to 3 business days.

        Given the fact that I spent over $600 on the expedited order, I was just seeking an explanation that assured me the items would still be sent and I was disappointed that no representative from the company would just have the decency to say, “worry not, your order is still coming.” That’s my biggest issue.

        I just haven’t received any follow-up, but thanks to your efforts, I did receive a notification that $72 of my $600+ dollar purchase is being refunded, but no explanation was provided, and no assurance that the rest of my order will ever be fulfilled was provided either.

        Seems odd and sketchy and counter to all the positive responses I’ve seen posted here, so I can only hope that I’m an isolated case and that this isn’t how future business will be conducted by this company.

        Please know that I’m incredibly grateful for your intervention. Take good care and have an amazing weekend.


  4. So I wanted to take a moment and update an earlier post on this product.

    After having the same delays as many others, and posting it here, the company did reach out to me.

    Here is what they said:

    “The issue was completely our fault. Our system wanted to ship the order from our California fulfillment center, but our medium / crew necks are out of stock in that location, this put the order into an error state.

    I have split the shipment (so you’ll receive two packages) and authorized them both to ship. I’m really sorry for this and the delay, we certainly value your order, we are just extremely busy right now as everything opens back up.

    We are bringing on more people in the next few weeks so that we are able to handle every email immediately as it comes in.”

    This seems to jibe with the rest of the posters.

    But here is the thing: they ended up refunding my expedited fees and the items then arrived relatively quickly.

    I have to say that I really do like these shirts. I ended up with several of each style. Yes, they are SNUG and when you first take them out of the packaging, they are TIGHT. Each new shirt I put on had to be pulled and pushed into a comfortable fit. But once there, they fit wonderfully. I have worn them under my regular shirts even in 90 degree temps and they are super comfortable.

    As I posted to another person here, they are longer than waist length so fit far down below your beltline. They fabric has some texture to it so it has some “grab” which keeps the shirts tucked AND helps keep any shirt over them from untucking.

    They eventually become “looser” after the first wearing and I have had no challenges removing them or wearing them again.

    I really do like this product and do recommend them to others.

  5. Hi all, I am considering this undershirt and I have a question. I am a guy with a big belly and I have to wear my pants low on my waist because of that. I am worried that the shirt is going to come untucked. How is the length on these shirts?

    • heya samuel, thanks for stopping by!

      i have not yet been able to try the corewear coremax undershirts, but men’s shapewear shirts like this are notorious for rolling up at the bottom. so even if the length is ok when you put it on, there is a possibility that rolling-up may occur. this could create a similar effect to untucking.

      that said, and generally speaking, shapewear and compression undershirts won’t normally come untucked the same as regular undershirts. they fit tight, conform to your body, and normally stretch down so they fit around the lower hip / upper thigh area.

      keep in mind that this is a shaping undershirt, so it will smooth you out quite a bit, and you may not have to wear your pants as low as you normally do.

      so, i’d say it would be worth trying this (or any other) men’s shapewear undershirt.

      • The shirts are long and have texture to the fabric. They are thicker (more like thermal underwear but MUCH more breathable).

        I like the fact they do NOT come untucked, and in fact help hold my outer shirt in place (like a dress shirt) and prevents that one from coming untucked as well.

  6. Hi, I purchased their undershirt and t-shirt. They are very uncomfortable and I emailed them twice asking for return instructions. All I got was the canned response others noted. From other comments here, I fear I will get no refund and be forced to engage my credit card company to revert the charge.

    • heya seth — thanks for stopping by and sharing your thoughts. i’ll share this feedback with the brand, so they know you came here to voice some concerns.

      can you clarify something for me though? you said you purchased their “undershirt and t-shirt”. but, corewear does not sell t-shirts.

      they sell crew neck, v-neck, and tank top compression undershirts (men’s shapewear). were you just referring to their undershirts as t-shirts?

      • gotcha — no worries. thanks for the clarification.

        i’ve been in contact with my new and primary contact at corewear, and did make him aware of your comment here. i’ve also shared opinions & suggestions with him on how the support experience and messaging can be improved.

        my contact has let me know that they are overhauling their support processes, and will be adding support staff so the response time is much more quick and predictable. still not quite sure why the messaging implies it could take up to 3-4 days to get back to a customer regarding a return request, but i do believe they intend to fix and improve the support process.

        it’s my understanding that they will have their new support process in-place by the end of this week, or beginning of next (may 10th), so hopefully the support experience will be much better as soon as the new support system and staff is in place.

        sounds like you originally contacted them on the morning of may 3rd, so hopefully they will reply to you soon with information on how to return your items for an exchange or refund.

        so, i’m hopeful that this will all be worked out soon. that said, i do want to hear back from you (or anyone else) regarding their experience with corewear support. so please keep me posted.

      • Hi Tug,
        Thanks for following up with CoreWear. BTW, I originally contacted them on April 29, received no reply (other than the automated message), then contacted them again on May 3.

        I finally did hear from them on May 4 (probably thanks to you), but rather than providing the return instructions, they asked me why I did not like it. I gave a detailed reply the same day (May 4) – still waiting for return instructions.

        While I understand their question so they can improve their product or their marketing, based on other comments here and the lack of return instructions, I fear they intend to avoid providing my refund while engaging in a debate or series of questions.

      • heya seth, thanks for sharing those additional details. it’ll be helpful context for anyone reading these comments.

        yeah, imo it should not take any boutique brand or start-up “several” business days to provide a human, non-automated response to an inquiry. there isn’t any situation that i can think of where it should take that long. even if the brand/start-up doesn’t have any support staff, the person running the business should be responding in a timely manner. generally speaking, that should be no more than 1-2 business days (at worst).

        also, no matter what, the first human reply should not be solely a question about why you don’t like the product or why you want to return it. the first human reply should be to provide instructions about how to return or exchange the items. it’s certainly ok to also include a question in that email asking for additional details about the reason for return or exchange. some will respond and provide details, others won’t. that’s just how it goes.

        the return or exchange experience should be easy and generally without too much friction. i’m ok with them asking for people to email them to request return/exchange instructions, but the first human reply must include everything the customer needs to know in order to process their request.

        with that said, i can say that this is not the first time i’ve heard about a brand taking a long time to assist customers in a meaningful way.

        in fact, there are three other brands that come to mind. culprit underwear, made here brand, and tasc. i’ve emailed them all several times with a question, and none of them have even taken the time to provide the courtesy of a reply. at least one of them has a system that sends an auto-reply, so i know they got the email. but that doesn’t count.

        at the very least corewear is responding — albeit slowly, and not in a manner that i think is acceptable. i still don’t understand why, after hearing repeated complaints about their return/exchange process, that they haven’t made immediate interim changes to make the experience better. frankly, it’s not that hard.

        but i’m hopeful my new contact at corewear is working to improve the support process and will be making the return/exchange process more streamlined.

        only time will tell. keep me posted.

      • Hi Tug,
        I received the shipping label and instructions from CoreWear yesterday. Much improved customer service from them this week. Thanks!

      • I have received my full refund – this was fast turnaround. Very noticeable improvement in their customer server over past week. Thanks!

  7. Having the exact same issue as the other posters. Order is over a month late. I paid for expedited shipping and ANY email sent to the email address (same one in this thread) just gets a generic:

    “Thank you for messaging CoreWear support. We’re backlogged at the moment so it may take a few days to get back to you. An agent will be with you as quickly as possible.”

    Kinda nervous at this point … should have paid better attention to these comments.

    • hey crriser — thanks for the info. i’ll let the folks at corewear know. i have a new contact there, and he’s a good deal more responsive than some of my prior contacts.

  8. Hi there, I’ve been trying to chase them up regarding an order which is now over a month late.
    No one seems to reply to the customer feedback online form or their customer support email address (tried 3 times now).
    Do you have any contacts or phone number that would enable me to follow up with them?

      • thanks nathan (:

        looks like jack from corewear will be able to help you!

        be sure to come back here and keep us posted on how everything works out.

      • Hi Jack. Thanks for that.

        I’ve sent a couple of emails to that address. But I’ve just sent you another one now.

        I look forward to hearing from you.

        Cheers. Nathan.

      • Hi Jack; I’ve sent a couple more emails to you; no responses.

        Do you have another way for me to contact you.

        As I have no shirts – I’ve paid for them and now no one will reply to me… (it’s been over 3 weeks since my first email and no reply) beginning to sound a little concerning.



  9. Hell Tug,

    First want to say great website. I had a similar experience as Garrick. I bought the 3 pack. After trying one I decided I wanted to return them. When I reached out to corewear to return them they sent me an email asking why I didn’t like them.

    If I answered they would send me a return label. When I did another question. Answered that. Six questions latter still no return label. I sent an email stating I had answered all the questions and I was supposed to get a return label. Email back was just answer this last one.

    Very shady company. I disputed through my credit card company and there reply was I wasn’t willing to cooperate to initiate the return. I gave up at this point. Have 3 shirts in medium if someone wants a deal.

    What I found through this experience. Returning and getting your money back. Good luck. Exchanging sizes probably easy.

    All there questions were centered around trying a different size.

    • heya scott, thanks a ton for sharing your feedback with me/us here.

      it really is unfortunate that you had that experience trying to return your corewear undershirts :(

      i’ve notified my contact at corewear, and pointed her to your feedback here. hopefully she or someone from their team will be able to help you.

      crossing my fingers we can help you get some resolution.

  10. Hey Tug. I did in fact purchase a larger size in the compression tank top. Once they issued the refund, I figured…why not give it another try. I had previously purchased a compression tank from a different brand and after comparing the two, corewear does offer superior quality.

  11. I was completely shocked by how good these shirts were. Better than anything else I’ve tried.

    USPS did make a mistake when delivering the order, but Jack from CoreWear helped me get it sorted out really quickly.

  12. How are these shirts different from Athlio branded shirts on Amazon? The Athlio shirts seem to have a similar fabric composition and they’re like 85% cheaper.

    • heya klc, thanks for stopping by.

      the athlio compression shirt looks like a typical light-compression athletic shirt (polyester / spandex).

      this corewear shapewear undershirt (nylon / spandex) is designed for slimming, shaping, & smoothing. it would be more like a high-compression undershirt, with special construction to shape in certain areas.

      also, this corewear undershirt has a near identical design to the former equmen shapewear compression shapewear undershirts. equmen & now corewear have specially placed ribbing on the back designed to provide some posture improvement.

      that said, i’m not going on record saying that this corewear undershirt *does* provide posture support (by pulling your shoulders back somewhat) — i’m just stating that’s what these brands claim that ribbing is supposed to do.

      bottom line is that the corewear shapewear compression undershirt & athlio compression shirt are designed for entirely different purposes.

      if you’re looking for shapewear for men, there are other shapewear undershirts that are not as expensive as this one.

      you can find more options here in my men’s shapewear section:

      • Hey Tug,

        We’d love for you to checkout some reviews on our website. Lots of positive comments on the posture improvements CoreWear gives.

        There are cheaper options on the market, but we’d argue that none are as good (or have the reputation/reviews) as CoreWear.

  13. I purchased an undershirt from Corewear in Feb 2020. I followed the chart to select my size.

    When I received the shirt, I noticed how tiny it was. Overall, it wasn’t really what I expected. I never wore the shirt. I placed it back in the packaging and contacted the company so as to return it.

    The first response was to explain that there were special instructions for initial wear that they neglected to include in the package. When I reached out to again request a return label, they responded by reminding me about the special initial wear instructions.

    When I explained that I simply wanted to return the item and be refunded, they sent me a return label. I mailed the shirt back and monitored the tracking.

    Weeks after the return delivery was confirmed, I still had not received a refund. Once again I contacted the company. I was told they never received the return. When I explained that usps tracking confirmed that the package had in fact been delivered to an individual at the company address, they simply stopped responding.

    I cannot comment on the shirt’s performance because I did not wear it. I cannot say the quality was bad…it seemed fine from what I observed.

    I CAN say, however, that they DID NOT stand by their refund guarantee. They got their shirt back and KEPT my money.

    • whoa, that sucks garrick.

      first, you shouldn’t have had to go to all that trouble to return the corewear undershirt. after you contacted the company, they could have told you about the initial wear instructions, but also continued to help you with your return request.

      at that point, you could have either given the undershirt a try, or just return it as you originally wanted to — all without having to have multiple interactions with them.

      of course it is possible that their receiving/shipping staff never got the return shipment, and brands don’t normally monitor all potential incoming packages.

      but, if packaging tracking indicates that the shipment was delivered, a brand should never question it. they should just refund you no questions asked.

      i’m disappointed to hear that corewear did this, as that is neither good customer service, nor a business best practice.

      maybe they’ll see your comment here and offer to make good on your return & refund request. let’s see (:

      • Hey Tug,

        Jessica from CoreWear here, I can confirm the refund was issued once the tracking showed the refund as delivered to our facility. Although we did never receive the package, the tracking reflecting it being delivered was good enough for us and a refund was issued!

        We’ve since received another order from the customer with no return required this time.

        We appreciate customers keeping us honest and are glad that everything worked out and we received another order :)

      • thanks for letting us know garrick! jessica from corewear mentioned that as well in early october.

        did you wind up buying another size? jessica mentioned receiving another order, and implied it was from you, but just curious if it was.

        if so, and you did receive a corewear compression shirt, do you have any feedback that you’d like to share here?

  14. Hi Tug,

    We founded CoreWear in January of 2019. That’s why the reviews start in February of 2019.

    We registered the domain name and transitioned there in September of 2019 as we found it to be a more fitting domain name.

    Our privacy policy can be found on the checkout screen as that is where information is collected.

    All customer service is done through the Customer Service email listed on our website. We don’t currently offer customer service by phone.

    Let us know if you have any other questions and thanks for the review!

    Best Regards,

    • The customer service is phenomenal! Sarah answered me in a very personable and friendly way just hours after my request!
      I cant wait to get my shirt tomorrow!

      • good stuff andrew. ok, keep me posted.

        be sure to send me photos when you get the corewear undershirt — you can get my email address on my contact page (:

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