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

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

Sweat Proof Guarantee
Sweat Proof Guarantee

Free Domestic Shipping Over $50 Shipping Information

Game-Changing Undershirts for Women

Revive your wardrobe, launder less and elevate your confidence. The Thompson Tee slim fit deep V-neck shirt for women blocks 100% of underarm sweat stains and odor, guaranteed.

This women's deep V-neck sweat proof undershirt features patented sweat proof underarm barriers that absorb underarm sweat, preventing moisture from seeping through your clothing. The result? All-day freshness, less laundry and less dry cleaning!

Wear the women's V-neck undershirt beneath any top, sweater or outerwear for around-the-clock defense against sweat, odor and stains. The slim fit style fits discreetly beneath your outfits and the deep V-neckline is ideal for wearing under lower-cut tops without peeking out.

Made with 95% rayon from bamboo and 5% Spandex. Proudly made in the USA.

Patented Sweat Proof Technology for Women's Slim Fit Deep V-Necks

Patented, Sweat Proof Technology


Proprietary design prevents sweat from showing through your underarms and ruining your clothing — period.


Center seam with separate front and back sweat panels for a sleek, tailored fit and feel.


Sweat proof technology won't wash out or lose effectiveness over time. Prevent pit stains and keep your wardrobe fresh, day after day.

Women's Slim Fit Deep V-Neck Shirt Features
Feature 1

Ultra-soft, lightweight material

Oh so soft and comfy enough for daily wear. Our women's deep V-neck shirts contain 95% premium rayon from bamboo and 5% Spandex.

Feature 2

Tagless, lay flat collar

Seamless look, feel and fit: Thompson Tee's tagless design ensures the shirt lays flat with no unsightly bunching.

Feature 3

Machine washer and dryer safe

Machine wash the women's V-neck undershirt in cold or warm water and dry on medium (or lower) heat.

Tuckable Women's Slim Fit Deep V-Neck TShirt

Long, Tuckable Length That Stays Put

The women's slim fit deep V-neck shirt is designed with extra length to stay tucked in all day. Your outfit will stay on point — no matter what.

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Thompson Tee Guarantee

The Original Sweat Proof Undershirt

We're serious when we say no more pit stains. We guarantee sweat won't penetrate the underarm barrier -- or your money back!

Thompson Tee Guarantee

Free Returns

Wear it, wash it and try it. We offer free returns on all opened or used shirts up to 30 days from purchase date.

Thompson Tee Guarantee

Made in USA

Every phase of production is completed in the USA - from materials to manufacturing. Each undershirt purchase supports U.S. jobs and manufacturing.

Thompson Tee Guarantee

Real Customer Service

No web bots here. We have a team of friendly people ready to answer all of your questions.

Size Chart

XS Size 0 - 2
Bust 29 - 30 in / 71 - 76 cm
S Size 2 - 4
Bust 30 - 32 in / 76 - 81 cm
M Size 4 - 6
Bust 32 - 33 in / 81 - 83 cm
L Size 8 - 10
Bust 34 - 36 in / 87 - 92 cm
XL Size 10 - 12
Bust 36 - 38 in / 92 - 97 cm
2XL Size 12+
Bust 38+ in / 99+ cm
Size Scale 0 - 2 2 - 4 4 - 6 8 - 10 10 - 12 12 +
Bust - Inches 29 - 30 30 - 32 32 - 33 34 - 36 36 - 38 38 +
Bust - cm 71 - 76 76 - 81 81 - 83 87 - 92 92 - 97 99 +

Faqs about our tees

How is the Thompson Tee different from other "sweat proof" shirts?
Original Fit vs Slim Fit: Which one is right for me?
Is the underarm barrier really sweat proof?
How does the sweat proof underarm barrier compare to sweat pads?