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Elyse is wearing size XS.
Elyse is wearing size XS.
Elyse is wearing size XS.
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Chelsey is wearing size XS.
Chelsey is wearing size XS.
Chelsey is wearing size XS.
The Long Sleeve Crop Undershirt

The Long Sleeve Crop Undershirt

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Buy 2, Save $15

Free Shipping over $150 (After discounts, before shipping and taxes). For international orders, please see our Shipping page.

The One’s Sister

You asked, we answered. Our bestselling, always-sold-out Crop Top is now available in a versatile (and reversible) long sleeve. If you’re not a fan of tuck-ins, pair this undershirt with your dresses, skirts, and high rise bottoms. All the benefits of The Signature, without the extra fabric. The perfect pairing under any sweater or jacket this season.

Our Essential Undershirt collection was designed to keep you feeling fresh and your clothes clean.

  • Absorbent underarm gusset with Contemporary Cotton Technology
  • Thermo-regulating TENCEL™
  • Invisible fit
  • Reversible neckline with a scoop or crew neck
  • Seamless sleeves
  • Made in Canada
  • 90% TENCEL™ is soft, breathable and keeps you cool and dry
  • 10% LYCRA® for optimal stretch and comfort
  • Fabric is responsibly knit and dyed in Canada
  • Machine wash cold, tumble dry low
Being mindful of our impact has always been at the core of what we do. This year we’re taking it further. We are in the process of auditing our impact. Stay tuned, we'll be sharing the results later this year.

Free shipping on U.S. and Canada orders over $150. All full-priced orders are eligible for free returns within 30 days of your delivery date.  

Items purchased at 30% off and above are final sale. Find out more about our return policy here.

Explore Our Fabric Technology

Sustainable Silk™

Meet the easy wear, easy care Numi silk collection. Wear your silk whenever, however. Stylish pieces made from Numi's Sustainable Silk that look and feel beautiful and are free from the standard silk stresses like staining and dry cleaning.

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Contemporary Cotton™

Liberate your wardrobe.  The Essential Undershirt, a cult product that changes lives and dry cleaning bills.  Wear that favorite shirt without a care.  Sumptuously soft base layers that keep you feeling fresh and clean, today and tomorrow.

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Forward Thinking Materials

Functional fabrics designed to make your life easier and be kinder to the planet.

Contemporary Cotton™ is a high-performance moisture management system that moves moisture away from the body.  It keeps you cooler and drier.  And washes clean of odors. 

Sustainable Silk™ is a blend of Naia™ and silk. It is treated with bluesign® certified stain repellent technology making the garment stain resistant and machine washable.

About Numi

Numi was born out of personal necessity. One day our founder, Michelle, realized she never wore her favorite clothes. They were either prone to noticeable sweat stains or expensive to dry clean. When she looked for a solution, there was nothing available. And so Numi was born.

Numi is a brand that celebrates what it means to be a woman. We make consciously created products that make life a little easier for us all and inspire a culture of kindness.

Committed to Sustainability

Being mindful of our impact has always been at the core of what we do. We like to think of it as a living commitment that grows and evolves with us. This year we're taking it further. We are in the process of auditing ourselves to see how and where we can be kinder to the planet.

LEARN MORE

Customer Reviews
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Filter Reviews:
CB
04/02/2022
Catherine B.
Canada

Life Changing

I own all of the essential undershirts and completely rely on them. I perspire a lot and these shirts hold true to what they claim. I don't have to worry about embarrassing armpit stains because we all know there are more important things to stress about than that.

  • Which size did you purchase? S
  • How was the fit? Snug
  • Reason for Purchase Functional: for preventing sweat stains

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