The Most Comfortable Crew Neck Undershirts for Men 2025

The most highly sought-after characteristic in undershirts: Comfort.

This installment in our Most Comfortable Underwear Series is all about the most comfortable crew neck undershirts for men.

And when we use the term comfortable, you might be wondering what level of comfort we’re actually talking about here.

To make our Most Comfortable List, we’re talking about undershirts that fit like a second skin.

One that you’re happy to put on and then forget you’re even wearing levels of comfort.

Now, of course, we know that men come in all different shapes and sizes, not to mention have different preferences when it comes to fit, fabric type, etc.

For this reason, it’s difficult to promise that each undershirt listed here is going to fit and feel perfect to you.

So, while there may be some scrolling and a little trial and error involved, we’re confident that you’ll find an incredibly comfortable undershirt on this list that fits just right and becomes your new favorite.

And for even more great options, check out the best crew neck undershirts available on Amazon.

How We Make Our Picks for Most Comfortable Crew Neck Undershirts

Look, we get it. Determining what makes for a great undershirt can be a pretty subjective thing.

So, how do we decide which crew neck undershirts make our list for the most comfortable? 

We tested a wide range of undershirt brands and put them through the rigors of daily life and active situations.

And, as a result, we can say for certain that 3 specific qualities make for an objectively more comfortable undershirt experience.

1. Premium fabric blends that support active bodies.

You move your body in a wide range of motion throughout the day and it doesn’t take much for it to overheat or experience distracting irritation.

We prioritized options with naturally soft and breathable fabrics that add a touch of stretch (i.e. spandex, elastane, etc.).

We’ve also found that while you may end up paying a little more for premium fabric, it tends to stay in better shape for longer.

2. Comfortable length that stays tucked in. 

When it comes to the length of your undershirt, there’s definitely a sweet spot that you want to hit.

Too short and it will come untucked and bunch up around your torso. Too long and the extra fabric will spill over your waistline and rumple your top layer. 

We went with undershirt brands that understand this crucial detail and know how to deliver a comfortable stay-tucked length.

3. Design features that optimize layering.

It’s right there in the name yet so many men’s undershirt options don’t seem properly designed to wear well under a top layer.

A neck that lays flat and a tapered fit around the torso go a long way in cutting down on adjustments and bunching.

And undershirts that utilize moisture-wicking properties will help keep you dry, comfortable, and distraction-free.  

Testing the 2(X)IST Pima Cotton Crew Neck Undershirt.

Here, you can see us testing one of our top picks, the 2(X)IST Pima Cotton Crewneck, which features all three of these key qualities. 

1. Fabric: Incredibly soft and breathable 100% Pima cotton fabric.

2. Length: A little extra length for a convenient stay-tucked fit.

3. Features: A perfect standard cut around the torso that's not too baggy or too tight.

Note: Featured products are independently selected and reviewed by The Underwear Review. If you purchase through our links, we may earn commission.

1. Tommy John Second Skin Crew Neck Stay-Tucked Undershirt

The Tommy John Second Skin Crew Neck Stay-Tucked Undershirt is a silky soft option that’s great for daily wear.

This undershirt utilizes a patented design that never comes untucked and a stretch rib memory collar that lays flat.

Shop at Tommy John: Tommy John Second Skin Crew Neck Stay-Tucked Undershirt

Tommy John’s Second Skin Crew Neck Stay-Tucked Undershirt utilizes a non-pilling micro modal fabric with added spandex for stretch and recovery to keep its shape.

This undershirt has a tapered design to eliminate excess fabric but is also available in a Modern Fit Design with a more relaxed mid-section.

Our Favorite Feature: Patented stay-tucked design and memory collar.

2. Tommy John Cool Cotton Crew-Neck Stay-Tucked Undershirt

The Tommy John Cool Cotton Crew Neck Stay-Tucked Undershirt is designed for daily wear with a breathable and moisture-wicking fabric that keeps you cooler and drier than regular cotton.

This undershirt has a tapered design to eliminate excess fabric but is also available in a Modern Fit Design with a more relaxed mid-section.

Shop at Tommy John: Tommy John Cool Cotton Crew Neck Undershirt

Tommy John’s Cool Cotton Crew Neck Stay-Tucked Undershirt features a comfortable pima cotton and spandex fabric blend that has extra stretch and recovery.

This undershirt has a stretch rib memory collar that lays flat and a patented stay-tucked design.

Our Favorite Feature: Breathable and moisture-wicking pima cotton fabric.

3. Mack Weldon AIRKNITx Crew Neck Undershirt

The Mack Weldon AIRKNITx Crew Neck Undershirt features extra lightweight and breathable AIRKNITx microfiber fabric.

This undershirt is engineered to pull in air, wick away moisture, and fit odor.

Shop at Mack Weldon: Mack Weldon AIRKNITx Crew Neck Undershirt

Mack Weldon’s AIRKNITx Crew Neck Undershirt utilizes comfortable 4-way stretch in a slim fit design with a little extra length.

This undershirt has ergonomic side seams and a durable ladder stitching pattern.

Our Favorite Feature: Extra lightweight and breathable AIRKNITx fabric.

4. Mack Weldon 18-Hour Jersey Crew Neck Undershirt

The Mack Weldon 18-Hour Jersey Crew Neck Undershirt features a classic undershirt design with a slim fit and a lie-flat collar.

This undershirt is constructed with a signature 18-Hour Jersey fabric that is incredibly soft and comfortable.

Shop at Mack Weldon: Mack Weldon 18-Hour Jersey Crew Neck Undershirt

Mack Weldon’s 18-Hour Jersey Crew Neck Undershirt utilizes a cotton and modal fabric blend with added spandex for comfortable stretch.

This undershirt features extra length for convenience and ergonomic seaming.

Our Favorite Feature: Incredibly soft 18-Hour Jersey fabric.

5. 2(X)IST Pima Cotton Crew Neck Undershirt

The 2(X)IST Pima Cotton Crew Neck Undershirt features an incredibly comfortable 100% Pima cotton fabric that has an extra soft feel on your skin.

Shop at Freshpair: 2(X)IST Pima Cotton Crew Neck Undershirt 

Available on Amazon: 2(X)IST Pima Cotton Crew Neck Undershirt 

2(X)IST’s Pima Cotton Crew Neck Undershirt sports a bound crew neckline and a perfect standard fit that’s not too baggy or too tight.

Our Favorite Feature: Incredibly soft 100% Pima cotton with a stylish bound crew neckline.

6. David Archy Bamboo Rayon Crew Neck Undershirt

The David Archy Bamboo Rayon Crew Neck Undershirt features high-end bamboo rayon fabric known for being incredibly soft, lightweight, and breathable.

This undershirt adds spandex stretch for a better fit with zero constriction.

Shop at David Archy: David Archy Bamboo Rayon Crew Neck Undershirt

15% Off Discount Code: TheUR

David Archy’s Bamboo Rayon Crew Neck Undershirt offers versatile performance that works great under dress shirts, for workouts, and for casual wear thanks to its naturally moisture-wicking bamboo stretch fabric in a slim fit design.

Our Favorite Feature: Soft and breathable bamboo rayon fabric.

7. David Archy Classic Modal Crew Neck Undershirt

The David Archy Classic Modal Crew Neck Undershirt features a soft and lightweight modal fabric with a seamless fitted design.

This undershirt has classic rib collar that maintains shape and a soft ribbon design on the back neck for comfort and durability.

Shop at David Archy: David Archy Classic Modal Crew Neck Undershirt

15% Off Discount Code: TheUR

David Archy’s Classic Modal Crew Neck Undershirt utilizes an irritation-free imprint-tag design and antibacterial properties to maintain a fresh feel for all-day wear.

Our Favorite Feature: Soft and lightweight modal fabric in classic design.

8. Polo Ralph Lauren Slim Crew Neck Undershirt

The Polo Ralph Lauren Slim Crew Neck Undershirt is the newest version of Ralph Lauren’s popular slim fit crewneck undershirt.

This undershirt features a soft cotton jersey fabric with sweat-wicking properties to keep you dry and comfortable.

Available on Amazon: Polo Ralph Lauren Slim Crew Neck Undershirt

Ralph Lauren’s Slim Crew Neck Undershirt utilizes 100% cotton and a classic ribbed crewneck design.

This undershirt has a slim fit and the signature Polo Pony embroidered on the front left hem.

Our Favorite Feature: Soft cotton jersey fabric in slim fit.

9. Calvin Klein Cotton Classics Crew Neck Undershirt

The Calvin Klein Cotton Classics Crew Neck Undershirt features 100% pure cotton for a soft feel and extra breathability.

This undershirt is a signature classic and features a CK Underwear logo at the hem.

Shop at Freshpair: CK Cotton Classics Crew Neck Undershirt

Available on Amazon: CK Cotton Classics Crew Neck Undershirt

Calvin Klein’s Cotton Classics Crew Neck Undershirt has a straight hem, topstitching, and a classic crew neck finish.

This undershirt has a slim fit and seaming details that are ideal for layering.

Our Favorite Feature: Signature classic in 100% pure cotton.

10. Obviously Crew Neck Short Sleeve Undershirt

The Obviously Crew Neck Short Sleeve Undershirt features a premium micro modal and bamboo rayon fabric blend that’s incredibly soft and lightweight.

This undershirt is breathable, moisture-wicking, and maintains a perfect mix of support and comfort.

Available on Amazon: Obviously Crew Neck Short Sleeve Undershirt

Obviously’s Crew Neck Short Sleeve Undershirt has 4-way stretch fabric that moves with your body and an intelligent design that avoids scratching, itching, and irritation.

This undershirt has a versatile fit that’s great at the office, the gym, on its own, or under anything.

Our Favorite Feature: Premium micro modal and bamboo rayon fabric.

11. Pair of Thieves SuperSoft Crew Neck Undershirt

The Pair of Thieves SuperSoft Crew Neck Undershirt utilizes signature SuperSoft cotton and modal fabric that’s incredibly soft and features 4-way stretch.

This undershirt has a comfortable and classic design in a flattering fit.

Shop at Pair of Thieves: Pair of Thieves SuperSoft Crew Neck Undershirt

Available on Amazon: Pair of Thieves SuperSoft Crew Neck Undershirt

Pair of Thieves’ SuperSoft Crew Neck Undershirt is a comfy and versatile option that both layers well and looks great on its own.

This undershirt is tagless and comes with a No Regrets Guarantee.

Our Favorite Feature: SuperSoft cotton and modal fabric with 4-way stretch.

If you’re looking to add some great undershirts to your rotation, you’ll also want to check out our top picks for the best undershirts available on Amazon.

And If you’re all about comfort when it comes to your shirts, socks, and underwear be sure to check out the rest of our Most Comfortable Series.