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Women's Sweat Proof Military Shirt - Original Fit Crewneck

Thompson Tee Guarantee Sweat Proof Guarantee

Women's Sweat Proof Military Shirt - Original Fit Crewneck

Thompson Tee Guarantee Sweat Proof Guarantee

Free Domestic Shipping Over $50 Shipping Information

30-Day Risk Free Returns Shipping Information

Stop Sweat & Launder Less

Stay dry all day and protect your wardrobe from unwanted sweat marks and yellow stains. The Thompson Tee Women's Military Crewneck undershirt is the perfect base layer for defense against sweat and odor.

The Thompson Tee women's military undershirt is built with patented Hydro-Shield technology that absorbs and prevents moisture from permeating your outer layers. The result? No more sweat stains and less laundry!

Wear the Thompson Tee military undershirt for women under uniforms, dress shirts, fatigues or on its own for around-the-clock confidence and wardrobe protection.

Made with 100% cotton.

Patented Sweat Proof Technology for Women's Original Fit Sweat Proof Shirts

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 Original Fit Sweat Proof Shirt Features
Feature 1

Ultra-soft, lightweight combed cotton

Our women's short sleeve undershirts are made with 100% premium combed cotton. These comfortable cotton undershirts are ideal for daily wear.

Feature 2

Tagless, lay flat collar

Seamless look and feel: 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 Military Original Fit Crewneck in cold or warm water and dry on medium (or lower) heat.

Tuckable Women's Original Fit Sweat Proof Shirts

Long, Tuckable Length That Stays Put

Move through your day freely and without distractions. Our women's military undershirts are made with extra length for the perfect military tuck that stays in place all day.

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

Real Customer Service

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

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The Thompson Tee Original Fit undershirts are true to size, fitting like a regular undershirt. If you prefer a looser fit, order up one size.

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?

The Thompson Tee is the original sweat proof undershirt.

It's the only undershirt backed by a patent from the U.S. Patent and Trademark Office for our Hydro-Shield sweat proof technology, which completely absorbs and blocks sweat while maintaining breathability. Although others might say "sweat proof," no undershirt can protect you like the proven Thompson Tee, and no other shirt has patented technology to back up such a claim.

Here are a few of the features that make our sweat proof undershirts unique:

  • Proprietary layering and stitching system blocks sweat from seeping through your underarms.
  • Sweat proof technology won’t wash out or lose effectiveness over time.
  • Separate front and back panels to trap sweat effectively, minimize heat build-up and keep you feeling cool.
  • The underarm barriers are created with a center seam design for a sleek, smooth fit that doesn’t bunch under your clothing.
Is the underarm barrier really sweat proof?

YES - We didn't just call it "sweat proof." We earned it! The Thompson Tee is the only patented proprietary design that uses a clinical-grade sweat proof material that completely blocks moisture from passing through. Other shirts may advertise "sweat proof" but don’t hold moisture well. They typically consist of two cotton layers and are often treated with chemicals that could wash out over time. The benefits of our sweat proof technology are native properties, so the shirt will not lose its effectiveness over time. That's why every Thompson Tee with Hydro-Shield Sweat Proof Technology comes with a Sweat Proof Guarantee. We guarantee that your underarm sweat won’t penetrate the sweat proof barrier — or your money back!

How does the sweat proof underarm barrier compare to sweat pads?

While armpit pads and sweat shields may absorb some sweat, they do not allow moisture to evaporate. So throughout the day, armpit pads can lose their stickiness due to sweat or become heavy and bulky beneath your shirt.

Unlike sweat shields, garment guards and sweat pads, Thompson Tee's sweat proof barrier is the only patented sweat proof technology available. By trapping sweat and releasing it through evaporation, your sweat won't show through your outerwear. Plus, you won't have to worry about adjusting your sweat pad or changing it out for a new one throughout the day.

For more in-depth information on sweat pads and sweat shields, check out our page dedicated to the topic here.