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The Underfit Undershirt

$35.95

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Description

Designed to be discreet, especially if you like to wear your collared shirts with a couple buttons undone. Made for all-day comfort. Stay tucked and enjoy anti-odor protection with an incredibly soft, breathable feel.

The Most Comfortable Undershirt You’ll Ever Wear

The moment you put on an UnderFit undershirt, you’ll notice a huge difference compared to other undershirts you’re used to wearing. To design the best men’s undershirts, we analyzed everything we hated about traditional, poorly-made basics. That’s why we set out to make an undershirt that:

  • Works for the office, a night out, or around the house.
  • Features the highest-quality, comfortable fabrics.
  • Stays tucked in all day long (with no “undershirt gut”).
  • Offers anti-odor and advanced moisture absorption.

A Perfect Fit That Keeps You Cool, Crisp, & Confident

You don’t need a six-pack to rock an UnderFit undershirt. They say clothes make the man. At UnderFit, we know confidence starts underneath.

  • Look slimmer and feel more confident.
  • Stays tucked all day, no matter how you move.
  • Moisture wicking & odor resistant fabric keeps you feeling fresh.
  • Tailored fit hugs your biceps and waistline to eliminate lines and “t-shirt bulk” around your middle.

Ridiculously Soft & Sustainable

You’ll never want to take this undershirt off! Our undershirts are made from ProModal fabric, a highly-sustainable textile sourced from Beech Wood chips derived from the Birch Tree. The trees are sustainably farmed and our manufacturing process is “closed-loop,” meaning there is little to no waste.

  • All-day breathability. Soft, light, and flexible.
  • Excellent durablility. No pilling after extended wear.
  • Wicks 50% more moisture than cotton.
  • 1/20th the environmental impact of cotton.

You’re A Reviews Person? We Got The Receipts

Menswear experts universally praise the Invisible Undershirt

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

Reviews

James W.
Verified Buyer

Love the fit and the deep V neck……Can wear any shirt without an undershirt showing, So far, the laundry is easy and I just hang them out of the washer to quickly dry.


Jeff S.
Verified Buyer

Great item. I had used the white ones for years, but the beige hides that you are wearing an undershirt better than the white ones when paired with a dress shirt that is slightly see through.


Michael R.
Verified Buyer

I’ve been on the hunt for the perfect undershirt for years. Finally, UnderFit has delivered. These guys have checked all the boxes. Phenomenal.


Dean H.
Verified Buyer

I have used the V-necks for open collar shirts for several years. I have now added the crew neck for wearing with a tie . Excellent quality and are not visible, like standard white t-shirts.


DIANDRA V.
Verified Buyer

I've had similar undershirts but so far I like the quality and fit so much better. I don't have to worry about my shirt going up and exposing my stomach or worry about my undershirt getting untucked. Yes the shirts are a bit pricy but it's worth every penny. The other brand I've had before we're even more expensive, not the best quality and I would feel my under arms getting sweaty and the undershirt wouldn't help protect that like these ones do. Only had them for a few weeks so can't say how well they hold up over time but here's to hoping they do.


Ryan S.
Verified Buyer

These are some of the nicest undershirts I have ever worn. I love that they are longer so they stay tucked. I will definitely be purchasing more.


Luis M.
Verified Buyer

These are very comfortable. I do not feel anything because they fit well and are not loose. Would recommend and buy again.


Derek D.
Verified Buyer

Very good quality, nice color and neck opening is generous so that these shirt are not visible. If I had any complaint; and this may be due to a slight compression quality that is intentional, the fabric isn’t as light and breathable as, for instance, a Pima cotton. I first bought these for summer wear under linen and they feel a bit heavy for that.


Billy M.
Verified Buyer

There is no other undershirt like this — nothing even close. Underfit shirts are actually LONG enough! And STRETCHY enough to move with you and stay tucked in and in place! UBER COMFORTABLE, they make you feel great! I rarely give reviews like this, but Underfit shirts are one of those rare products that truly enhance quality of life. You have to experience it to understand it. Highly, highly recommend!


Jonathan M.
Verified Buyer

I’ve been looking for a very long time to find a perfect undershirt. I received my first v-neck from underfit and I love it. Super soft and comfortable. Under a button down shirt of just on its own. I can’t wait to buy more.


Doug G.
Verified Buyer

My experience was great. I placed my order, it got delivered very quickly and the fit was perfect. I couldn’t be more please. I will purchase again.


Joseph C.
Verified Buyer

I like the way the shirts feel and fit.


Ian L.
Verified Buyer

I recently bought my first made to measurement suit because work is sending me to conferences. At the first event with my perfectly fitting suit I became aware how my cotton undershirts ride up as I sit and stand up over and over making my dress shirt look awkward and too big. I knew there must be a better way. After buying these shirts there is no going back. The dress shirt looks like it was barely pulled up at the end of the day!


Jason L.
Verified Buyer

The fit, feel and quality of an underfit shirt pushes the competition out of the race. No bulky feeling in the waist and the v neck stays put even after multiple washes.


Julie H.
Verified Buyer

Easy. And exceeded expectations. My son absolutely loves these shirts. Feels more confident that he will not sweat through his nice shirts.


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& Returns

We stand by our product quality. If you are not pleased with your purchase, we offer a 7-day quality guarantee on all products. If you have any additional questions or would like to request return, refund, exchange, feel free to contact us at help@brightbuy.support.

Learn more about our return, refund, and exchange policies here.

Order processing & shipping time within 3-5 days, and delivery time within 14-21 business days from shipping date. During high volume periods, the processing time may take an additional 2-4 business days . Learn more about shipping FAQs here.

On average, the shipping fee is $4.95 per unit. However, shipping fee may vary due to promotional activities. Please visit the checkout page to obtain your final shipping charges.