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Undershirts
- White V-Neck
  
  Our most popular fit. Deep v-neck stays hidden throughout the day.
  
  White Crew Neck
  
  Timeless comfort. Perfect under anything from suits to casual shirts.
- Invisible V-Neck
  
  Ultra low-profile. Designed to stay hidden under light fabrics.
  
  Black V-Neck
  
  Understated and sharp. The go-to for darker layers.
- Gray V-Neck
  
  Sleek and modern. A fresh fit for any contemporary wardrobe.
  
  Gray Crew Neck
  
  Clean and versatile. A classic fit for any wardrobe.
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4.7 Loved by 35,000+ Guys

Long Undershirts That Stay Tucked In

Tired of undershirts that ride up? Our undershirts are engineered with a long cut that stays tucked all day — no matter how much you move. Designed for layering under dress shirts, polos, and sweaters, they give you a clean, confident look from morning to night.

Super Breathable
Moisture Wicking
Buttery Soft
Stays Tucked All Day
4-Way Stretch
Fights Odor

White V Neck Undershirt – Studio

White V Neck Undershirt – Studio

Color: Beige	White Beige Light Gray Black
Style: V-Neck	Crew Neck V-Neck
Size	s m l a t xl xxl

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🔥 Best Seller

Beige V-Neck

Disappears under unbuttoned shirts for a clean, polished look.

White V Neck Undershirt – Studio – Armen front angle

White V Neck Undershirt – Studio

Color: White	White Beige Light Gray Black
Style: V-Neck	Crew Neck V-Neck
Size	s m l a t xl xxl

+ Quick Add

White V-Neck

A crisp, classic layer that works with every shirt.

Gray V Neck Undershirt – Tyler front full

Color: Light Gray	White Beige Light Gray Black
Style: V-Neck	Crew Neck V-Neck
Size	s m l a t xl xxl

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Gray V-Neck

Smooth and modern. Designed to layer under shirts.

Black V Neck Undershirt – Tyler front full

Color: Black	White Beige Light Gray Black
Style: V-Neck	Crew Neck V-Neck
Size	s m l a t xl xxl

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Black V-Neck

Fades under dark clothing for a seamless appearance.

Beige-Crew-Neck-Front

Color: Beige	White Beige Light Gray Black
Style: Crew Neck	Crew Neck V-Neck
Size	s m l a t xl xxl

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Beige Crew Neck

Blends under light shirts for a smooth, invisible foundation.

White Crew Neck Undershirt – Tyler front full

Color: White	White Beige Light Gray Black
Style: Crew Neck	Crew Neck V-Neck
Size	s m l a t xl xxl

+ Quick Add

White Crew Neck

A staple layer made for dress shirts, sweaters, and beyond.

Gray Crew Neck Undershirt – Tyler front full

Color: Light Gray	White Beige Light Gray Black
Style: Crew Neck	Crew Neck V-Neck
Size	s m l a t xl xxl

+ Quick Add

Gray Crew Neck

Neutral and modern. Built to anchor any outfit with ease.

Black Crew Neck Undershirt – Tyler front full

Color: Black	White Beige Light Gray Black
Style: Crew Neck	Crew Neck V-Neck
Size	s m l a t xl xxl

+ Quick Add

Black Crew Neck

Simple and sharp. A versatile pick for every wardrobe.

“Our #1 recommendation”
UnderFit combines comfort and performance for the ultimate undershirt experience.

Connor L.

Black Lapel Suits

“Simply the best undershirt, ever.”

Designed to stay hidden, keep you cool, and provide all-day comfort with a perfect fit that moves with you.

Stays tucked all day
Invisible under any shirt
Tailored, sleek fit
Ultra-soft & breathable

Upgrade My Undershirt

365-Day Feel Good Guarantee

These are the only undershirts I wear. Not just more comfortable. They make you look better too.

Dr. Jeff M.

Verified Buyer

The Best Fit or Your Money Back

Every UnderFit undershirt comes with a 365-day risk-free trial. If it’s not the best undershirt you’ve ever worn, we’ll make it right — no questions asked.

35k+

Guys Trust Underfit
175k+

Undershirts Sold
100%

Hassle-Free Returns

The Best Men’s Undershirts – Uncompromising Quality

Super-soft fabric

The secret to UnderFit’s superior comfort starts with the fabric. We use a TENCEL™ fabric blend that feels great against your skin, provides all-day comfort all day and is built to last.
Lasting durability

What good is an undershirt if it tears or has holes after only a few uses? That’s why we use durable TENCEL™ fabric in our shirts. Unlike cotton, it has an exceptionally high tensile strength, making it harder to rip and tear. It also means your undershirt will continue to keep its great shape after repeated wear and washings.
Greater breathability

In addition to the softness, UnderFit’s TENCEL™ fabric also offers superior breathability. This means that your undershirt will help you stay cool when things start heating up.
Superb temperature regulation

Whether you’re at work or out on the town, you want to minimize heat as much as possible to avoid excessive sweating. Our TENCEL™ fabric blend helps to regulate temperature to let your body breathe when the heat goes up.
Advanced moisture absorption

Just because you’re perspiring doesn’t mean others need to know about it. UnderFit offers the best undershirts for men who sweat, thanks to advanced moisture absorption that stops sweat in its tracks, so the rest of your clothes stay dry and fresh.
Odor resistance

TENCEL™ fabric has moisture-wicking technology to limit moisture, keep you dry and prevent odor-causing bacteria. It’s just like the moisture wicking you expect from high-performance workout apparel, but designed for your day-to-day lifestyle instead.
Eco-friendly & sustainable

We care about the environment just as much as we care about making the best mens undershirt! That’s why we only source our raw material from sustainably grown forest plantations.