Men's Sweat Proof Undershirt (V-Neck)

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Product Details

The Original, and Still Our Best Seller.

Sweatshield Undershirts started with the classic V-Neck undershirt, and we're still making them more than 10 years later.

Our V-Neck undershirt with an impenetrable sweat-proof barrier in the underarm is the best shirt in the world for keeping sweat from showing through to your dress shirt, your polo, or your casual wear, whether you're making a presentation, going on a date, or just spending time with your family. Our technology stops sweat marks and keeps you cool, comfortable, and confident the entire day. These look and feel like a premium brand, and you can wear them knowing that you'll feel and look dry all day.

  • Luxurious micro modal fabric, which is 50% more absorbent than cotton, ensures that perspiration doesn't end up as sweat marks. This works on the entire shirt, not just the underarms.

  • Keep-cool technology provides comfortable temperature control all day with lightweight, breathable material that still keeps moisture controlled. No sweaty cotton!

  • No deodorant stains or sweat stains means that your outer shirts last longer. You'll save money on and stop stressing about the shirts you show the world.

  • Classic V-Neck styling for use with polo shirts, t-shirts, casual shirts and business shirts when you want to wear them unbuttoned. Prefer Crew Neck? See our Crew Neck shirt

  • Tailored, stay-tucked styling keeps the shirts laying flat and the neck looking crisp, avoids bunching, and is tagless.
  • Product Reviews

    Customer Reviews

    Based on 74 reviews

    I've been wearing these shirts for some time. I wear a suit for work and am always hot, even in winter. With the undershirts I feel confident and relaxed. This means less stress. Perfect.

    Great Product That Actually Works!

    I've been purchasing the sweatshield undershirts since 2014.
    I cannot recommend them strongly enough. Unfortunately because of my green uniform I have to wear for work I was so terrified of my sweat marks showing through. I finally bit the bullet and spent the money on these tops and so glad that the price did not put me off. In my mind they are 100% worth the money. I do not show through at all, at the end of the day the sweatshield shirt will be damp but it hasnt shown through on my clothes at all, no longer having to wear black cardigans in the summer over my uniform to hide my embarrassment. Thank you!!

    complete faith

    I honestly didnÍt think this product would work - I have tried SO many things over the years that IÍve resigned myself to just wearing dark or patterned clothes. I started a new job and for the first time in my life knew I would have to wear a uniform. I ordered an undershirt because I was desperate for something that would mean I could take the work I was being offered. Let me be clear; I was NOT expecting it to work. I thought at best it would delay the inevitable embarrassment of sweat marks on my new uniform, but no, it actually worked. I wore my uniform from 10:30-5pm and there wasnÍt even a hint of a mark. I am honestly amazed! If youÍre in a similar situation I would say please donÍt hesitate, itÍs genuinely worth it and as someone that has tried every treatment and product under the sun this is the first one that has made any sort of difference. I am SO happy with it. The only thing IÍd say is that the sizes are interesting - I read the reviews and heeded the advice to order much bigger than usual so ordered a womenÍs XL (IÍm size 10-12 normally) and itÍs quite big so the second one IÍve ordered is a large and IÍd say that one is much closer to my size. IÍm sure the fabric will give over time so order with that in mind too.

    Best undershirt for problems you'll find

    I'm not so bad with arms but back is a pain, however this product is fantastic for all. It does everything I could ask for and life has changed drastically since. If you suffer from any of these embarrassing issues I can't recommend it highly enough.

    Yes - they work

    Very pleased with the purchace, the undershirts are a snug slim fitting which I like and the natural colour does'nt show under a pale shirt. It definitely stops your work shirts getting damp under-arm so you can stay smart in the office without worrying about sweat-rings or odour. Washed & worn a couple of times now - all good so far.


    Been suffering from lack of confidence due to sweatmarks, to the point where I'd only wear black in order to cover it up. However, my life has drastically improved since purchasing these and I'm super impressed - very highly recommended! Thank you!

    The best and only solution to my sweaty armpit

    For years and years I have suffered a lot of embarrassment due to sweaty armpits. I have tried everything, antiperspirants you can think of, useed lemon and even tried to use Aluminium Chloride prescribed by my Gp. Still didnÍt work.
    I tried sweatshirt and itÍs just like a miracle. The whole day I didnÍt see any visible sweat mark on my shirt
    I bought 8 more..3 whit, 3 black and 2 skin tone .
    IÍll be ordering more soon .
    Highly recommended

    confidence after all those years

    After years of not being able to remove my jacket, all has changed! And confidence that there wonÍt be any underarm stains leads to more general confidence. A real life-changing product. They do wrinkle under your shirt but that is a small price to pay in my view.

    No more worry

    This shirt is made with a soft lovely fabric.... It does really works . This is the 3rd shirt I have purchased and I am happier and happier with the product. Great!!!

    Excellent Product

    For me I have tried using all the different deodorants with no success and it was affecting my day to day life. Black was my favourite colour t-shirt. I'm actually able to wear different colours without having to worry about pit stains and can actually enjoy myself. I never white reviews but this product is a life changer and people need to know it

    Men's Size Chart

    Sizes: S M L XL
    Chest 34-36 38-40 42-44 46-48
    Length 28" 29" 30" 31"

    Choose V Neck for use with polo shirts, t-shirts, casual shirts and business shirts when you want to wear them open collared (unbuttoned).

    Choose Crew Neck for a sharp undershirt neckline with an open collared shirt. If wearing a buttoned up collar with a tie then crew neck will make the undershirt neckline less visible.

    Men's Boxers Size Chart (inches)

    Sizes: S M L XL
    Waist 28-30 30-33 33-36 36-39

    Women's Size Chart

    Sizes: S M L XL
    Size 6 8 10 12
    Bust 30¾ 32¼ 34¼ 36¼
    Waist 24 25½ 27½ 29½
    Hip 33¾ 35½ 37½ 39½

    Men's Sweat Proof Undershirt (V-Neck)