The Signature
Sweat-Proof Undershirt
70% more
moisture-wicking
&
3x more
breathable than cotton
Stay cool, dry, and fresh all day with our innovative sweat-proof undershirts.
20% OFF
USE CODE NOSWEAT AT CHECKOUT
As Featured In
Sweat-Stains & Deo Disasters?
Wave them goodbye
The Signature Undershirt acts as a protective shield, preventing any unwanted stains from reaching your clothes. Our innovative fabric technology wicks away moisture, preserving your favorite outfits and extending their lifespan.
No Sweat Stains? How?
Secret Sweat Proof Shields
Our undershirts have a discreet and ultra-comfortable underarm sweat protection shield. Crafted from Contemporary Cotton™, a unique technical fabric that absorbs sweat and resists odors, our shields employ a one-way moisture transfer system, effectively redirecting moisture and sweat away from the body and keeping your clothing fresh for longer.
Thermo-Regulating. 4-Way Stretch.
Stay ahead of sweat with our advanced technology. Crafted from 90% Thermo-Regulating Tencel™, a supremely soft, breathable, and lightweight fabric that maintains your body temperature, ensuring you stay cool and dry throughout the day. The addition of 10% Lycra® offers optimal 4-way stretch and unmatched comfort for the ultimate layering essential.
A Resounding Hit
I Love the fit and materials of my Numi classic shirt. It really protects the outerwear sweaters and jackets and other long sleeves from my sweat.. That says a lot.!!
Brooke L.
✓ Verified Purchase
I had a blouse that showed perspiration stains - it was frustrating to use adhesive pads. I am beyond happy with my signature undershirt. It is lightweight, comfy and works to prevent perspiration stains, just as advertised. Best part? Canadian company and made in Canada!
Alison T.
✓ Verified Purchase
Bought this to wear under sweaters and it is perfect! Soft, stretchy and comfy. I’ll be buying more.
Leslie B.
✓ Verified Purchase
Looking your best has never been easier
The Signature Undershirt is discreetly designed, ensuring no bulges or seams are visible under your clothing. You can confidently wear any outfit, knowing that your secret weapon is providing the perfect base-layer for a flawless appearance.
No Sweat Stains
Stay dry, confident, and stain-free with our unique cotton underarm shield. No more sweat stains, guaranteed.
Invisible Fit. 4-Way Stretch
Seamless sleeves and the ultra-soft four-way stretch fabric feels soft on the skin and works perfectly for layering
All Day Comfort
A long lasting & breathable fabric keeps you dry & cool all day long, no matter what life throws at you
The Signature Undershirt
Changed the Lives of Thousands of Women
Join the women who have already experienced the Numi difference. Embrace confidence, stay dry, and make a positive impact on the planet.
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Feel your best in any situation
Say goodbye to embarrassing sweat stains and deodorant marks
As women, we understand the unspoken struggles of sweat-stains and deodorant marks, especially in social interactions. The signature undershirt, with its sweat-absorbing technology seamlessly integrated into the fabric, stands as your reliable ally against embarrassing stains and lasting comfort.
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