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Cotton V-Neck Sweat Proof Undershirt

132 reviews
Size Guide

  • A simple v-neck undershirt should be a staple of every man’s wardrobe. If you wear a button-up shirt without a tie, you need a v-neck to keep the undershirt out of view. And unless you enjoy sweat stains on your dress shirts, a sweat proof v-neck is an absolute essential.

    We’re like most guys – we hate sweat, and we hate sweat stains. Ejis v-neck sweat proof cotton shirts are scientifically engineered to resist sweat stains.

    Our white sweat proof shirt works well under most dress shirt. If you wear a lot of white dress shirts, consider our sweat proof grey v-neck; it may seem counter-intuitive, but a grey undershirt is less visible under a white button-up. And don’t forget our black sweat proof v-neck to wear with dark-colored dress shirts or as a casual weekend shirt.

    How is the cotton v-neck undershirt different from the micro modal undershirt?

    To keep you looking dry we used micro modal in the underarm pad to deliver the same sweat absorbing and blocking performance as our full micro modal sweat blocking undershirts and paired it with lightweight, premium 100% combed cotton in the body of the shirt.

  • LARGE ONE-PIECE WATERPROOF LAYER stops sweat from transferring to your shirt. Think of it as your never-fail backup to antiperspirant deodorant, durable enough to be washed over and over and chemical free.

    SILVER COMBATS ODOR CAUSING BACTERIA. Silver is permanently bound to the fibers of our anti-sweat undershirts, which keeps you fresher longer. It also helps to regulate your body temperature by pulling heat away from the body when you're hot and keeping you warmer when you're cold.

    SUPER PREMIUM MICRO MODAL FABRIC IN THE PAD is 2x softer and 50% more water-absorbent than cotton alone, which means our v-neck cotton undershirt has the exact same sweat blocking performance as our micro modal undershirts.

    STAYS TUCKED IN with added length. The slim fit design keeps the protective area snugly up against your armpit, where it belongs. Stop settling for slopping, disheveled t-shirts under your dress shirts.

    WHAT THIS UNDERSHIRT WON'T DO is make your sweat disappear. Unfortunately, we can’t stop sweat from happening. It may feel damp under your arms but sweat stains won't show on your shirt when you wear this powerful sweat proof v-neck shirt.

  • We ship to the U.S. & Canada. Visit the COVID-19 Update webpage for up-to-date details about international shipping.

    U.S. Shipping

    Standard Shipping FREE (arrives in 3-10 business days from day of shipment)
    Expedited $9.99 (arrives in 2-3 business days from day of shipment)
    Priority $29.00 (arrives in 1-2 business days from day of shipment)

    Orders are processed at our Utah, USA based warehouse within 24 hours of being placed.

    Priority and expedited shipping are not available for P.O. Box addresses. Buyers with orders shipped to Alaska and Hawaii are charged domestic shipping rates.

    International shipping may be delayed due to the pandemic. Visit the COVID-19 Update webpage for up-to-date details.

    Canada Standard International Shipping

    $9.99 for the first unit Plus $3.00 for each additional unit (e.g. two units would be $9.99 + $3.00 = $12.99). The international shipping rate does not include any customs, duties & service fees that may apply upon delivery.

    Most orders arrive in a week, but they can take up to 20 business days depending on customs delays and local postal services. Both of which are outside of our control.

    Canada FedEx International Economy:


    FedEx International Economy shipments arrive in 3-5 business days from date of shipment but can take longer depending on customs delays, which is outside our control.

  • First Product Guarantee

    Buy one undershirt and one pair of boxers and try them out risk-free! If you don’t love them, we’ll send you a different size or issue a refund. No return required. Visit the FAQs for details.

    Satisfaction Guarantee 45-day Return Policy

    If it’s not covered by our First Product Guarantee, we’ll still issue a refund or process an exchange for orders returned to us within 45 days of purchase. We don’t resell items that have been tried on (because no one wants to buy used underwear) so all returned items must be unopened, unworn, unwashed, containing the tags and are folded neatly inside the original, packaging that is not torn, ripped or cut open. Visit the FAQs for details.

It will actually work for you. Or your money back.

Frequently Asked Questions

What does sweat proof mean?

Our sweat proof undershirts and boxer briefs are engineered to prevent sweat stains. Can we stop you from sweating? Heck no! But we can keep sweat marks from appearing on the armpit of your dress shirts and the seat of your pants.

What if it doesn’t work?

You get a full 45 days from purchase to put your first undershirt to the test to make sure it really works for you just like it does for tens of thousands of other men. If you feel it’s not right for you just let us know and we’ll give you a refund. Valid for single units only. Multi-packs are eligible for our Satisfaction Guarantee 45-day Return Policy. See the FAQ more details.

How does a silver-infused undershirt fight odor?

Bacteria cause odor, and silver has anti-odor properties. We infuse silver particles into our fabrics to help fight that odor-causing bacteria. Our odor-resistant undershirts are scientifically engineered to keep your shirts smelling fresh. Each of our anti-odor undershirts includes this powerful technology, as do our odor-fighting socks and sweat-proof underwear.

Where do these shirts get their sweat-fighting superpowers?

It might look like just an undershirt, but there’s a lot of technology behind our design. We begin with a soft, moisture-wicking micro modal pad fused with silver to fight odor-causing bacteria. We then add a durable waterproof layer to help defend your dress shirt from sweat, and finish with a super comfortable outer layer. The result is an undershirt with a sweat-proof barrier that keeps sweat from showing through to your dress shirt, and stops sweat marks or deodorant marks.

Customer Reviews
4.8 Based on 132 Reviews
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    Good but …

    The shirts do the job by stopping sweaty underarm marks- but as they are regularly washed they have lost their ‘whiteness’ and have become yucky grey. So not major but annoying for an expensive garment

    Cathy S.
    Australia Australia


    Hi Cathy, Thank you for sharing your feedback. I apologize that your undershirts have not kept their "whiteness". Please go to this link to see some tips on how to care for your Ejis products, which may help resolve this issue, please check out the Care Instructions section of our FAQ webpage: https://www.ejisinc.com/pages/faq-new . Please reach out to us at support@ejisinc.com if you have any more questions or concerns. Have a great day, Merrielle Ejis Customer Support


    Great product!

    Great product and works very well!

    Neil R.
    New Zealand New Zealand


    Hi Neil, Thank you for leaving a review. I am so happy to hear that your Ejis undershirt is working very well for you! Have a great day, Merrielle Ejis Customer Support



    Well worth the price! I would never spend that amount for undershirts but after ruining too many shirts and being uncomfortable, I took a risk. It was well worth it. I recommend it.

    Nesanel M.
    United States United States


    Hi Nesanel, Thank you for leaving a review! I am so happy to hear that your Ejis undershirts were well worth the price. We appreciate the recommendation. Have a great day, Merrielle Ejis Customer Support


    Pretty good

    These shirts are pretty good. They last about a year before the seams around the underarm start weakening/splitting. (With regular washing in accordance with the Ejis-provided instructions, of course.) The marketing tag sewn to the bottom of the shirt also creates holes over time as the regular washing in the places where the tag's stitches are located. Overall the shirts work well.

    Michael W.
    United States United States


    Hi Michael, Thank you for sharing your feedback. I will send your comments on to our product development team. I hope you are loving your Ejis undershirt! Have a great day, Merrielle Ejis Customer Support

    A Ejis Customer
    sam b.
    United States United States


    Hi Sam, Thank you for leaving a review! I am so happy to hear that your Ejis undershirt is working amazingly. Have a great day, Merrielle Ejis Customer Support


    I liked it.

    I tried it out at work today. Worked great.

    William Y.
    United States United States


    Hi William, Thank you for leaving a review. I am so happy to hear that your Ejis undershirt worked great while you were at work! Have a great day, Merrielle Ejis Customer Support



    Great buy!!! Super happy with the purchase!

    Paul R.
    United States United States


    Hi Paul, Thank you for leaving a review! I am so happy to hear that you are super happy with your Ejis undershirt! Have a great day, Merrielle Ejis Customer Support


    Peace of mind

    It definelty works but it’s slightly pricey. Overall I love it and would recommend it for anyone that’s self conscious about underarm sweat showing.

    Bnezion s.
    United States United States


    Hi Bnezion, Thank you for leaving a review! We understand that the price point is higher than a regular undershirt. This is due to the cost of manufacturing with premium micro modal & cotton, odor fighting silver infusion and sweat proof technology. I am so happy to hear that you love your Ejis undershirt! Have a great day, Merrielle Ejis Customer Support


    Great purchase

    Would definitely buy again

    Marco G.
    France France


    Hi Marco, Thank you for leaving a review! I am so glad to hear that you love your Ejis undershirt! Have a great day, Merrielle Ejis Customer Support


    Best t-shirts ever!

    This is my second order, will never buy anything else!

    Dean D.
    United States United States


    Hi Dean, Thank you for leaving a review! I am so happy to hear that you love your Ejis undershirts. We appreciate your loyalty to Ejis! Have a great day, Merrielle Ejis Customer Support