Try it for 90 days. Experience mind-blowing softness or get your money back.

we think our undershirts and underwear speak for themselves.

Apparently they’re not the only ones doing the talking...

when you choose underfit, you get:

  • Highest quality fabric available
  • Unbelievably comfortable
  • More durable than a Ford Truck
  • Super-human strength
    (Not really, but you'll be confident enough to nail that long drive.)

100% satisfaction guaranteed.

Try UnderFit risk-free today. If you’re not 100% satisfied with your undershirt, we promise to make everything right. If you have any questions, before or after purchasing, please let us know!

reviews from the pros

"No rising, No billowing. We managed to get through a whole day without a single untuck from under our made-to-measure shirts."


"Gotta tell you, it’s a very nice product. Good fit, good feel, good price. Comparatively, the UnderFit fits and feels very close (or as nice as) to the more expensive micromodal/lycra undershirts that are priced in the $30+ range."

Tug The UnderShirt Guy

"The problem with most undershirts is that they’re just T-shirts. UnderFit’s shirts are made from lightweight yet durable fabrics with a touch of stretch and are designed to be worn under your shirts."

VALET Valet Mag

"If there is a better purpose-built undershirt out there, we have yet to find it."

OTC Off The Cuff

your new favorite underwear. trust us.

We guarantee that you’ll love our underwear or we’ll take them back, even if they’ve been worn!

shop underwear

we give back with every purchase. you choose the charity.

We share 5% of our profits from your order with the charity of your choice. Select your preferred charity on the checkout page.



The Premium Men's Undershirt


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The Premium Men's Undershirt