Bestseller
"#color_almond| Emi is 5'7.5" and wears a size S
Emi is 5'7.5" and wears a size S
"#color_almond| Emi is 5'7.5" and wears a size S
Emi is 5'7.5" and wears a size S
The Signature Undershirt
 
The Signature Undershirt
 
The Signature Undershirt
 
The Signature Undershirt
 
The Signature Undershirt
 
"#color_almond| Emi is 5'7.5" and wears a size S
Emi is 5'7.5" and wears a size S
"#color_almond| Emi is 5'7.5" and wears a size S
Emi is 5'7.5" and wears a size S
"#color_almond| Emi is 5'7.5" and wears a size S
Emi is 5'7.5" and wears a size S
"#color_almond| Emi is 5'7.5" and wears a size S
Emi is 5'7.5" and wears a size S
"#color_ALMOND|Jessica is 5'10", wearing a size S
Jessica is 5'10", wearing a size S
"#color_ALMOND|Ashleigh is 5'11", wearing a size M
Ashleigh is 5'11", wearing a size M
"#color_white| Siobhan is 5'8.5" and wears a size S
Siobhan is 5'8.5" and wears a size S
"#color_white| Siobhan is 5'8.5" and wears a size S
Siobhan is 5'8.5" and wears a size S
"#color_white| Siobhan is 5'8.5" and wears a size S
Siobhan is 5'8.5" and wears a size S
"#color_white| Siobhan is 5'8.5" and wears a size S
Siobhan is 5'8.5" and wears a size S
"#color_WHITE|Ashleigh is 5'11", wearing a size M
Ashleigh is 5'11", wearing a size M
"#color_WHITE|Aiko is 5'8", wearing a size XS
Aiko is 5'8", wearing a size XS
"#color_black| Siobhan is 5'8.5" and wears a size S
Siobhan is 5'8.5" and wears a size S
"#color_black| Siobhan is 5'8.5" and wears a size S
Siobhan is 5'8.5" and wears a size S
"#color_black| Siobhan is 5'8.5" and wears a size S
Siobhan is 5'8.5" and wears a size S
"#color_black| Siobhan is 5'8.5" and wears a size S
Siobhan is 5'8.5" and wears a size S
#color_BLACK
 
"#color_BLACK|Zoe is 5'8", wearing a size M
Zoe is 5'8", wearing a size M
"#color_BLACK|Zoe is 5'8", wearing a size M
Zoe is 5'8", wearing a size M
"#color_heathergrey| Siobhan is 5'8.5" and wears a size S
Siobhan is 5'8.5" and wears a size S
"#color_heathergrey| Siobhan is 5'8.5" and wears a size S
Siobhan is 5'8.5" and wears a size S
"#color_HEATHER GREY|Estyr is 5'9", wearing a size XS
Estyr is 5'9", wearing a size XS
"#color_HEATHER GREY|Estyr is 5'9", wearing a size XS
Estyr is 5'9", wearing a size XS
"#color_toffee| Tolu is 5'7.5" and wears a size M
Tolu is 5'7.5" and wears a size M
"#color_toffee| Tolu is 5'7.5" and wears a size M
Tolu is 5'7.5" and wears a size M
"#color_toffee| Tolu is 5'7.5" and wears a size M
Tolu is 5'7.5" and wears a size M
"#color_toffee| Tolu is 5'7.5" and wears a size M
Tolu is 5'7.5" and wears a size M
"#color_cocoa| Tolu is 5'7.5" and wears a size M
Tolu is 5'7.5" and wears a size M
"#color_cocoa| Tolu is 5'7.5" and wears a size M
Tolu is 5'7.5" and wears a size M
"#color_cocoa| Tolu is 5'7.5" and wears a size M
Tolu is 5'7.5" and wears a size M
"#color_cocoa| Tolu is 5'7.5" and wears a size M
Tolu is 5'7.5" and wears a size M
"#color_CHARCOAL| Tolu is 5'7.5", wearing a size M
Tolu is 5'7.5", wearing a size M
"#color_CHARCOAL| Tolu is 5'7.5", wearing a size M
Tolu is 5'7.5", wearing a size M
"#color_CHARCOAL| Tolu is 5'7.5", wearing a size M
Tolu is 5'7.5", wearing a size M
The Signature Undershirt
 

The Signature Undershirt

$65.00
Buy 2, Save 10%
Size:
  • Size Chart
  • IN CM

Size
Color:ALMOND

Classic

Limited Edition

Get a $50 store credit on orders over $150 and use it towards your next purchase.

✓ Free Shipping on Orders $150+
✓ 30-Day Money Back Guarantee

STOPS SWEAT STAINS

BREATHABLE

ABSORBS MOISTURE & ODOR

4-WAY STRETCH

Elevate Your Outfit: Say Hello to the Better Base Layer

Meet our #1 best seller, The Signature. This OG undershirt is the ultimate base-layer for every outfit. No more sweat-stains or deodorant marks – stay fresh and feel clean all day with this game-changer. With 10,000+ sold worldwide, The Signature Undershirt is the real deal.

Free Shipping & Easy Returns

Free shipping on U.S. and Canada orders over $150. 

Please allow up to 2-3 business days for processing before your order ships. More shipping info here.

Returns

Holiday Policy: 

Items purchased with up to and including 30% discount, made between November 1, 2023 and December 31, 2023 will be eligible for refund, within 30-days of the delivery date. Refunds will be made to the same method of payment used to make the purchase. A prepaid shipping label will be provided. 

Gift cards are non-refundable, and items listed as  Last Chance and Final Sale are not eligible to be returned or exchanged, meaning that no returns, exchanges or refunds can be accommodated.

Find out more about our return policy here.  

Free Shipping & Easy Returns

Free shipping on U.S. and Canada orders over $150. 

Please allow up to 2-3 business days for processing before your order ships. More shipping info here.

Returns

Holiday Policy: 

Items purchased with up to and including 30% discount, made between November 1, 2023 and December 31, 2023 will be eligible for refund, within 30-days of the delivery date. Refunds will be made to the same method of payment used to make the purchase. A prepaid shipping label will be provided. 

Gift cards are non-refundable, and items listed as  Last Chance and Final Sale are not eligible to be returned or exchanged, meaning that no returns, exchanges or refunds can be accommodated.

Find out more about our return policy here.  

30-Day Money Back Guarantee

We stand by the quality of our products. If you're not completely satisfied within 30 days of your purchase, contact us and we'll gladly refund your order. It's that simple.

30-Day Money Back Guarantee

We stand by the quality of our products. If you're not completely satisfied within 30 days of your purchase, contact us and we'll gladly refund your order. It's that simple.

Chat for Size Help

Use our chat icon at the bottom left corner to chat with a live agent or send us an e-mail at customer@wearnumi.com

Chat for Size Help

Use our chat icon at the bottom left corner to chat with a live agent or send us an e-mail at customer@wearnumi.com

Find Your Perfect Fit

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The Crop 

Perfect for reducing bulk around your mid-section, especially when wearing high-waisted bottoms.

LEARN MORE 

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The Square Neck

Designed with cap sleeves to seamlessly layer under all your shorter sleeved blouses. Features a flattering square neckline.

LEARN MORE

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The Three Quarter 

Classic fit with sleeves hitting just below the elbow. It features a reversible neckline for added versatility.

LEARN MORE

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The Signature

Our #1 best seller is the ultimate base-layer for every outfit. No more sweat-stains or deodorant marks.

LEARN MORE

As Featured In

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What sets us apart

Sweat-Proof Contemporary Cotton

Unique underarm shields provide extra sweat protection. Our thermo-regulating TENCEL™ fabric keeps you cool & dry so you feel confident in any situation. 

FAQs

Women need sweat-proof undershirts to prevent visible sweat stains on their clothing and to stay dry and confident throughout the day. It can also help prolong the life of outerwear by reducing the need for frequent washing.

Our sweat-proof undershirts were created to be the perfect base-layer for day-to-day dressing. They feature our innovative Contemporary Cotton underarm shield, designed to wick and absorb moisture to prevent sweat stains from showing on your clothes. With the body made from a breathable TENCEL™ fabric, our undershirts also help to regulate your body temperature, ensuring all-day comfort.

We recommend using the size guide (featured on every product page) to determine the best size for you.

Each size guide features a sizing chart and instructions on how-to-measure the item. Generally, we recommend ordering our Essential Undershirt collection in your regular size for the perfect, snug fit. If you prefer a more relaxed fit, we recommend sizing up. If you’re still unsure about sizing, send us an email at customercare@wearnumi.com.

Absolutely! All our undershirts are machine-washable and dryer safe. Simply wash them cold and with like colors.

Featured Collections

All Tops

Undershirts

Sustainable Silks

Bestsellers

Free shipping

On orders over $150