Undershirts

Keep your clothes fresh longer with our sweat-proof undershirts, featuring built-in shields to protect against moisture and save dry cleaning costs.

Filter and sort 13 products

Color
Size
Product type
Sleeve length
Sort by
13 products
Clear all
  • #color_black

    The Signature Bundle

    shop now
  • Save 20%
    Back In Stock
    #color_almond #color_almond
    XS
    S
    M
    L
    XL
    +1
    The Signature Undershirt $65.00 $52.00
    Choose options
  • Save 20% #color_blush #color_blush
    XS
    S
    M
    L
    XL
    +1
    The Crop Undershirt $65.00 $52.00
    Choose options
  • Save 20%
    Back In Stock
    #color_black #color_black
    XS
    S
    M
    L
    XL
    +1
    The Square Neck Cap Sleeve Undershirt $65.00 $52.00
    Choose options
  • Save 20% #color_black #color_almond
    XS
    S
    M
    L
    XL
    +1
    The Lace Undershirt $65.00 $52.00
    Choose options
  • Save 20%
    Back In Stock
    #color_taupe #color_black
    XS
    S
    M
    L
    XL
    The Merino Wool Signature Undershirt $85.00 $68.00
    Choose options
  • Save 20%
    Back In Stock
    #color_black #color_black
    XS
    S
    M
    L
    XL
    The Merino Wool Long-Sleeve Crewneck Undershirt $100.00 $80.00
    Choose options
  • Save 20% The Long-Sleeve Crewneck Undershirt The Long-Sleeve Crewneck Undershirt
    XS
    S
    M
    L
    XL
    +1
    The Long-Sleeve Crewneck Undershirt $75.00 $60.00
    Choose options
  • Save 20% #color_almond #color_almond
    XS
    S
    M
    L
    XL
    +2
    The Three Quarter Undershirt $65.00 $52.00
    Choose options
  • Save 20% #color_charcoal #color_charcoal
    XS
    S
    M
    L
    XL
    +1
    The Mock Neck Undershirt $75.00 $60.00
    Choose options
  • Save 20% #color_taupe #color_taupe
    XS
    S
    M
    L
    XL
    The Merino Wool Short-Sleeve Crewneck Undershirt $85.00 $68.00
    Choose options

  • Your New Everyday Essential

    Meet Blush: soft, timeless, and effortlessly wearable.

    Shop blush
  • Save 20% #color_almond #color_almond
    XS
    S
    M
    L
    XL
    +1
    The Semi-Fitted Undershirt $65.00 $52.00
    Choose options
  • Sold out #color_fawn #color_fawn
    XS
    S
    M
    L
    XL
    +1
    The AdapTex™ Signature $80.00 $64.00
  • Save 20% #color_white #color_white
    XS
    S
    M
    L
    XL
    +1
    The Short-Sleeve Crewneck Undershirt $65.00 $52.00
    Choose options

FAQs

Frequently Asked Questions

How do I wear an undershirt?

Our undershirts are meant to be worn as a base layer underneath your outer clothing. Our sweat-proof undershirts are specifically designed to be worn under other garments to provide a layer of protection against sweat stains. We recommend layering your undershirt under sweaters, blouses, or any other top layer to prevent visible sweat stains from showing through onto your clothes. By wearing an undershirt, you can stay dry, comfortable, and confident throughout the day.
What is a sweat-proof undershirt?

A sweat-proof undershirt is a type of undershirt designed to prevent sweat from showing through outer clothing. Our undershirts contain moisture-wicking properties and sweat-absorbing underarm pads.
How does it work?

Each Essential Undershirt is enhanced with a Contemporary Cotton shield in the underarm. This gives you extra sweat protection while keeping you dry and comfortable, and keeps your clothes clean longer. 

New to Numi? Start here.

Explore our handpicked selection of newcomer favourites.

Take The Quiz