WOMEN'S SWEAT PROOF UNDERSHIRTS

Experience all-day comfort and confidence with Thompson Tee – the original women’s sweat proof undershirt. Our patented Hydro-Shield® technology absorbs moisture, preventing unsightly underarm sweat marks and odor. Not only it keeps you feeling fresh and dry, but it also saves you time and money on laundry and dry-cleaning bills.

Live your best life in a Thompson Tee! All sweat proof undershirts for women are backed by our Sweat Proof Guarantee.

Experience all-day comfort and confidence with Thompson Tee – the original women’s sweat proof undershirt. Our patented Hydro-Shield® technology absorbs moisture, preventing unsightly underarm sweat marks and odor. Not only it keeps you feeling fresh and dry, but it also saves you time and money on laundry and dry-cleaning bills. Live your best life in a Thompson Tee! All sweat proof undershirts for women are backed by our Sweat Proof Guarantee.

Woman wearing Thompson Tee White Slim Fit Women’s Sweat Proof Undershirt and showing the underarm pads

Slim Fit

Our slim-fit sweat proof undershirts for women are made with 95% rayon from bamboo and a 5% Spandex blend for a smooth, luxurious feel. This shirt hugs your body comfortably and can be worn as a base layer or on its own. Its form-fitting silhouette keeps you feeling confident while blocking excessive sweat and odor.

  • White
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    Women's Sweat Proof Undershirt - Slim Fit Scoop Neck

    $39.99

  • On Sale!
    2 White / 1 Black / 1 Beige
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    Women's Sweat Proof Undershirt - Slim Fit Scoop Neck - Pack of 4

    $159.96
    $151.96

    5% off packs

  • White
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    Women's Sweat Proof Undershirt - Slim Fit Deep V-neck

    $39.99

  • On Sale!
    White
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    Women's Sweat Proof Undershirt - Slim Fit Deep V-neck Pack of 4

    $159.96
    $151.96

    5% off packs

Woman wearing Thompson Tee Black Original Fit Women’s Sweat Proof Undershirt

Original Fit

Our original sweat proof tee fits and feels like a traditional undershirt. It’s offered in three styles, multiple colors, and is made with 100% premium combed cotton for all-around comfort, protection and all-day freshness to keep up with busy lifestyles.

  • New
    White
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    Women's Sweat Proof Undershirt - Original Fit Crewneck

    $33.99

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    Women's Sweat Proof Undershirt - Original Fit Scoop Neck

    $33.99

  • On Sale!
    Mixed
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    Women's Sweat Proof Undershirt - Original Fit Scoop Neck Pack of 4

    $135.96
    $129.16

    5% off packs

  • Limited
    Tan 499
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    Women's Sweat Proof Military Shirt - Original Fit Crewneck

    $33.99

Frequently Asked Questions

Who are Thompson Tees for?

Thompson Tees are for everyone looking to keep sweat off shirts and sight! Regardless of your age and whether you're dealing with hyperhidrosis or just want a little extra protection against nervous sweat, our sweat proof undershirts have got you covered. They are a comfortable, effective, chemical-free solution to underarm sweat marks.

Original Fit vs Slim Fit: Which one is right for me?

Choosing between the Original Fit and Slim Fit depends on your personal style and comfort preference. The Slim Fit, made from a blend of bamboo rayon and spandex, offers a snug fit that stays discreet under clothing, ideal for those who prefer a streamlined look. The Original Fit, crafted from 100% cotton, provides a more relaxed fit, offering extra room and breathability, perfect for individuals who appreciate a classic, looser undershirt feel.

Check our Buyer’s Guide for more information.

How is the Thompson Tee different from other "sweat proof" shirts?

Thompson Tee stands out as the pioneer in sweat-proof technology, being the only undershirt patented in the U.S. for its Hydro-Shield sweat proof design. This cutting-edge technology not only completely absorbs and blocks sweat from showing but does so while maintaining breathability, a unique balance that sets us apart from other alternatives.

See how Thompson Tee stacks up against other alternatives.

Is the underarm barrier really sweat proof?

Yes, the underarm barrier in Thompson Tee uses a patented, clinical-grade sweat proof material, ensuring that moisture does not penetrate the fabric. The innovative design maintains its effectiveness over time, wash after wash, providing reliable, long-term sweat protection.

If it doesn't absorb sweat, where does the sweat go?

Our sweat proof undershirts feature proprietary layering and stitching techniques that work like reverse osmosis. This means they draw sweat away from your skin and release it as vapor, preventing sweat from reaching your outer clothing, and keeping you dry throughout the day.

What's the story behind the Thompson Tee?

Thompson Tee was born from the personal journeys of friends Billy Thompson and Randy Choi, both of whom experienced the challenges of hyperhidrosis, a condition causing excessive sweating. Motivated by a desire to offer a solution to the embarrassing issue of sweat marks and stains, they created the Thompson Tee—a revolutionary sweat-proof undershirt that transforms confidence in everyday life.

Learn more about Thompson Tee’s story.

Aside from underarms, does the shirt prevent chest and back sweat from showing?

Thompson Tee is specifically designed to target underarm sweat. While it offers some general moisture-wicking properties for other areas like the chest and back, its primary focus is ensuring complete protection for the underarm area.

Does it stop working after a couple of washes or after a few times?

No, Thompson Tee is engineered for longevity. The sweat proof barrier retains its effectiveness through numerous washes, offering reliable sweat protection over repeated use. By following our care instructions, you can ensure your tee continues performing optimally for a long time.

Our customers report that their tees last several months to over a year with proper care.

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Free Domestic Shipping

Thompson Tee offers free shipping to any domestic location within the United States on orders over $50.

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30 Day Risk Free Returns

Wear it, wash it, and wear it again. We accept returns or exchanges on all opened or used shirts up to 30 days from the purchase date.

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Patented Sweat Proof Technology

Our patented Hydro-Shield® technology blocks underarm sweat, protecting you from wet marks and yellow stains – guaranteed.