Andy D.
The Perfect Undershirt!
The UnderFit shirts feel great against my skin and look perfect!

UnderFit undershirts are cut longer and lightly hug your hips and below, to stay tucked in all day. Our fabric is ideal for undershirts due to its exceptional softness, advanced moisture absorption, odor resistance and superb breathability. If you want to remain less comfortable in your run-of-the-mill undershirt, by all means, DON’T buy an UnderFit.
UnderFit (underfit.com) has 365 customer reviews on Five Star Index, with an average rating of 4.5 out of 5.
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Andy D.
The UnderFit shirts feel great against my skin and look perfect!
Tim C.
Best undershirts I've ever tried (and I've tried a bunch). So comfortable I forget they're there. And they never come untucked. And the sleeves are short enough they don't peak out of my t-shirts. 6 ft, 175 pounds and medium is perfect for me.
MKB
Ease of ordering
Jean-Pierre F.
I placed an order from Canada with Underfit and had issues receiving it within a suitable time frame. I expressed my dissatisfaction with respect to these circumstances and the Underfit company quickly contacted me to rectify the situation. I would like to recognize the quality of their customer service which is quite rare these days. They've regained my trust and respect and I wouldn't hesitate to reorder from them again. Thank-you Underfit!!!
Brian E.
I love their crew neck t-shirts soo much! I love the tighter fit and thin light weight soft fabric. Perfect. They don't pill and remain soft. I have had them for about a year and a half and have 3 orders for multiple shirts. I hope these shirts are never changed.
Tristan Z.
I’ve had experience with Thompson Tee’s beige anti-sweat slim fitting v-neck but it couldn’t compare to the slightly darker color beige of UnderFit’s which camouflage’s nicely under a white dress shirt. I put my trust in it last weekend on my wedding day and couldn’t be happier with the feel and appearance. Gave me the confidence to truly enjoy the day to the fullest. Thank you!
Stephanie F.
I got these for my husband to wear under polo shirts. He wasn't thrilled at first, but now says they're comfortable, don't trap heat, and smooth out chest hair without feeling tight. They may not be the sexiest undershirts, but they definitely deliver on performance and comfort!
Andrew S.
Hands down, UNDERFIT has been one of the most rewarding purchases I've made in a long time. There's no needless hype behind these incredible undershirts-they are what they claim them to be. Silky smooth; moisture-wicking;snug-fitting in a most comfortable way...I can't imagine how I've lived without thus product as long as I have. I'm genuinely sold, and so grateful that this product! My one gripe? That they aren't offered in black. Please strongly consider bringing these to market, as they would pair nicely with other items in a man's wardrobe as well.