Sweat Proof Undershirts


Sweat Proof Undershirts

Say goodbye to sweat marks and sweat stains forever with Thompson Tee. Guaranteed.

Thompson Tee’s Patented Hydro-Shield® Technology

Stopping visible signs of underarm sweat for good.

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Free Domestic Shipping on orders over $50

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Satisfaction guaranteed or your money back

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The original sweat proof shirt with patented Hydro-Shield® technology

Drenched to Dapper

Drenched to Dapper

Transform your life with Thompson Tee and enjoy the freedom of never worrying about pitting out.


“I have been buying these shirts for several years. They are absolutely amazing. I’m able to wear light gray lab coats to work and not have wet spots under my arms. These are life-changing for people who suffer from hyperhidrosis like I do.”

Michelle R.
Verified Reviewer

“Been dealing with crazy underarm sweat and wrecked shirts for over 10 years. I ordered a 4 pack and after a couple weeks, I am beyond impressed. No more wet outer shirt!”

Cole H.
Verified Reviewer

“I'm a musician/actor, and I used to always wear black or dark stage clothes and avoid raising my arms because of sweat. No more! These shirts as undershirts have expanded my stage wardrobe and I feel confident on stage.”

Andrew B.
Verified Reviewer

“The men in my family love these padded under arm shirts as we live in a very humid, hot part of the south. These will truly protect from any kind of breakthrough sweat and feel comfortable.”

Verified Reviewer

Over 2 Million Sweat Proof Undershirts Sold

We’re celebrating 10 years of comfort and confidence! Thank you for supporting us over the last decade and making Thompson Tee the best sweat proof shirt on the market, trusted worldwide with over 10,000 five-star reviews.

Over the last 10 years, our sweat proof undershirts have helped thousands of people feel comfortable and regain their confidence. We've come a long way and hit many milestones, but we couldn't have made it this far without you.

– Billy Thompson and Randy Choi, Co-Founders

Over 2 Million Sweat Proof Undershirts Sold
The best undershirts for men to control armpit sweat
"The best undershirts for men to control armpit sweat"

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The Thompson Tee Difference

Do you struggle with managing excessive armpit sweat? You’re not alone.

Thompson Tee provides a practical, comfortable solution for those who deal with excessive sweating or hyperhidrosis. Our sweat proof undershirts help eliminate embarrassing sweat marks and yellow stains while improving your confidence and quality of life.

Sweat Proof Technology

Patented Sweat Proof Technology

Our lightweight layering system traps heat and moisture and allows them to evaporate – meaning wet marks, sweat stains and odor won’t seep through your clothes.

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Made in USA

Ethically Produced

All our products are designed in America. We partner with American and global facilities that commit to the highest fair labor and environmentally-friendly standards.

Thompson Tee Undershirt Technology
Shirts are machine washable

Machine Washable

Wash your Thompson Tees as often as you like. Our sweat proof technology won’t wear out over time.

Shirts are tagless


All sweat proof undershirts are designed with tagless, lay-flat collars, so there’s no irritation, itching or bulk.