Numi
17 products
Bestseller
A person with long dark hair poses with one arm raised, wearing The Signature Undershirt by Numi in light beige, and looking off to the side. A woman with long dark hair stands facing forward, wearing a light beige short-sleeve top and light brown pants against a plain background. Her Signature Undershirt by Numi ensures she stays comfortable even in the heat, thanks to its sweat-proof design.
The Signature Undershirt
Sale price$70.00
Bestseller
A woman wearing Numi's sweat-proof light pink "The Crop Undershirt" and beige high-waisted pants stands against a plain white background. Rear view of a person with long dark hair wearing The Crop Undershirt by Numi in light pink, paired with beige leggings, standing against a plain background.
The Crop Undershirt
Sale price$65.00
Bestseller
A person with long hair is wearing a white The Three Quarter Undershirt from Numi and beige pants, standing against a plain light background. A person with long hair is standing with their back to the camera, wearing a white Numi Three Quarter Undershirt and beige pants.
The Three Quarter Undershirt
Sale price$70.00
Bestseller
A person with short dark hair and fair skin is wearing The Lace Undershirt by Numi, a white sweat-proof short-sleeve top, paired with beige pants, standing against a plain backdrop. A woman with short dark hair is standing with her back turned, wearing a white, sweat-proof undershirt called The Lace Undershirt from Numi and light brown shorts against a plain background.
The Lace Undershirt
Sale price$70.00
Bestseller
"#color_TRUFFLE | Emi is 5'7.5" and wears a size S "#color_TRUFFLE | Emi is 5'7.5" and wears a size S
The Square Neck Cap Sleeve Undershirt
Sale price$70.00
BestsellerSold out
"#color_WHITE|Jessica is 5'10", wearing a size S "#color_WHITE|Jessica is 5'10", wearing a size S
The Florence T-Shirt Blouse
Sale price$100.00
Last Chance
"#color_CHARCOAL| Siobhan is 5'8.5", wearing a size S "#color_CHARCOAL| Siobhan is 5'8.5", wearing a size S
The Mock Neck Undershirt
Sale price$75.00
"#color_BLACK| Emi is 5'7.5", wearing a size S "#color_BLACK| Emi is 5'7.5", wearing a size S
The Merino Wool Signature Undershirt
Sale price$85.00
NEW
The Semi-Fitted Undershirt The Semi-Fitted Undershirt
The Semi-Fitted Undershirt
Sale price$70.00
Last ChanceSave 45%
"#color_BLACK| Siobhan is 5'8.5", wearing a size S "#color_BLACK| Siobhan is 5'8.5", wearing a size S
The Merino Wool Turtleneck Undershirt
Sale price$120.00 Regular price$220.00
NEW
"#color_black| Emi is 5'7.5" and wears a size S "#color_black| Emi is 5'7.5" and wears a size S
The Comfort Brief
Sale price$24.00
NEW
"#color_Black|Azi is 5'9" and wears a size S "#color_Black|Azi is 5'9" and wears a size S
The AdapTex™ Tank
Sale price$65.00
NEW
"#color_Coastal Blue|Alex is 5'7" and wears a size S "#color_Coastal Blue|Alex is 5'7" and wears a size S
The AdapTex™ Scoop Neck Tee
Sale price$75.00
NEW
"#color_Fawn|Alex is 5'7" and wears a size S "#color_Fawn|Alex is 5'7" and wears a size S
The AdapTex™ Signature
Sale price$80.00
NEW
"#color_Coastal Blue|Maya is 5'7" and wears a size L "#color_Coastal Blue|Maya is 5'7" and wears a size L
The AdapTex™ Sleeveless V-Neck
Sale price$65.00
NEW
"#color_Fawn|Maya is 5'7" and wears a size L The AdapTex™ Short
The AdapTex™ Short
Sale price$40.00
NEW
"#color_Black|Maya is 5'7" and wears a size L "#color_Black|Maya is 5'7" and wears a size L
The AdapTex™ Brief
Sale price$30.00
undershirts-_us_vs_them_-_chartonly__PID:a126bd41-8f36-4726-8743-c87e17f4f6a3

EXPERIENCE THE DIFFERENCE

Upgrade Your Base Layer: Say Goodbye to Regular T-Shirts

Let's talk about why a regular t-shirt falls short when it comes to being your go-to base layer. Here's the deal: regular tees just can't keep up with the demands of your day-to-day.

Enter Numi undershirts. Crafted with advanced sweat-proof technology, they're your secret weapon against unwanted moisture and odor. Designed for both comfort and style, Numi undershirts elevate your wardrobe essentials, ensuring you stay dry, fresh, and confident from morning to night.

Featured Collections

FAQ

Sweat-Proof Undershirts: Your Questions, Answered.

Sweat proof undershirts are made of contemporary cotton with a unique underarm garment to prevent sweat stains from showing on the outer clothes. Our undershirts are made with moisture-wicking fabric that absorbs sweat and keeps you feeling dry and comfortable.

Make sure to check our sizing guide on the product page, next to the sizing choices. You can also take our sizing quiz to find the right size for you. If you’re still unsure, chat with us (pressing a chat box on the bottom left part) or send us an email at customercare@wearnumi.com.

Our undershirts are machine wash cold, tumble dry low. Please wash with like colors.