![White White](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/500x659/products/119/1248/OG_Fit_Crewneck-white-1__68321.1709144884.png?c=2)
![Sweat Proof Undershirts](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/original/image-manager/tt-hero-home-23.png?t=1700517396)
CONFIDENCE GAME-CHANGERS
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.
![Truck Icon](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/stencil/39e7ac60-e558-013c-faca-32139eb6e79a/e/f767d0c0-af3b-013c-51c6-0a14f868bd24/img/icon-truck-transparent.png)
Free Domestic Shipping on orders over $50
Satisfaction guaranteed or your money back
![Sweatproof Icon](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/stencil/39e7ac60-e558-013c-faca-32139eb6e79a/e/f767d0c0-af3b-013c-51c6-0a14f868bd24/img/icon-sweatproof.png)
The original sweat proof shirt with patented Hydro-Shield® technology
![Drenched to Dapper](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/stencil/39e7ac60-e558-013c-faca-32139eb6e79a/e/f767d0c0-af3b-013c-51c6-0a14f868bd24/img/home/before-after-thumbnail.png)
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.”
“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!”
“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.”
“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.”
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
![Billy and Randy Saying Thank You Billy and Randy Saying Thank You](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/original/image-manager/billy-randy-tt.png)
![Armpit sweat confidence as getting ready for the day Armpit sweat confidence as getting ready for the day](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/original/image-manager/tt-home-lifestyle-desktop-2x-min.jpg)
"The best undershirts for men to control armpit sweat"
Also seen in
![Shark Tank Shark Tank](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/67w/content/logo-sharktank-min-2023-new.png)
![The Doctors The Doctors](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/100w/content/logo-thedoctors-min-2023-new.png)
![The Huffington Post The Huffington Post](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/101w/content/logo-huffingtonpost-min-2023-new.png)
![ABC News ABC News](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/100w/content/logo-abcnews-min-2023-new.png)
![CNBC News CNBC News](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/84w/content/logo-cnbc-min-2023-new.png)
![Wall Street Journal Wall Street Journal](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/100w/content/logo-wsj-min-2023-new.png)
![Mens Journal Mens Journal](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/112w/content/logo-mensjournal-min-2023-new.png)
![Medium Medium](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/100w/content/logo-medium-min-2023-new.png)
![Business Insider Business Insider](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/120w/content/logo-businessinsider-min-2023-new.png)
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.
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.
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 Thompson Tee Undershirt Technology](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/392w/content/tt-home-mens-og-crewneck-cutout-desktop-2x-min.jpg)
Machine Washable
Wash your Thompson Tees as often as you like. Our sweat proof technology won’t wear out over time.
Tag-Free
All sweat proof undershirts are designed with tagless, lay-flat collars, so there’s no irritation, itching or bulk.
See the Thompson Tee in Action
![Video Demonstration Video Demonstration](https://cdn11.bigcommerce.com/s-zpm3yf7t7h/images/stencil/480w/content/hqdefault.jpg)
Shop Men’s Sweat Proof Undershirts
Stay cool, dry and confident, no matter what.
Shop Women’s Sweat Proof Undershirts
Say hello to longer-lasting clothes and all-day freshness.