Second Skin Stay Tucked Crew Neck Undershirt Second Skin

| (25 reviews)
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Product Description:

  • Stays tucked in, guaranteed (How?)
  • Eliminates EFG (Say What?)
  • Super-thin micro modal fabric (as soft and luxurious as silk)
  • Made for all body types
  • Streamlined fit makes outerwear look better
  • Super-comfortable (fitted but never restrictive to wear)
The second skin is amazing - it is comfortable, thin, and it really does stay tucked in. -Dave D, Bloomfield Hills MI
I love my Tommy John undershirt and I am going to replace all of my cotton undershirts with them - Benjamin M, Visalia CA

Our undershirt is unlike anything that you've worn before. It's meant to be worn close to the body and is supremely comfortable due to our stretch technology.

This undershirt is the ultimate replacement to your current “box cut” short sleeve undershirts that give you EFG “excess fabric gut” and BMT "billowy muffin top."

Once you pull this undershirt down, it will stay in place by hugging your lower body. It will not ride up, bunch up, or come untucked. You'll wonder how you ever lived without this undershirt.

  • Won't come untucked
  • Improves the appearance of your outerwear
  • Super-comfortable (not a Compression Fit and definitely not Shapewear)
  • Does not add the bulk of a typical undershirt
  • Made for all body types
  • Will not shrink and will not pill

Fabric: 90% Non-Pilling Micro Modal 10% Spandex Read More

Sizing Info: Your correct size will be determined by your chest size.

Size Chart

Care instructions

Fabric: Second Skin

  • Moisture-wicking, anti-odor performance fabric
  • 360 Degree Stretch Fabric

84% Polyester, 16% Spandex

Problem: Performance underwear rides up your legs when you move. This is due to the fact that they use 2 way and 4 way stretch. This type of fabric doesn’t stretch in all directions during movement, which is why it causes your underwear to rideup your legs.

What we did: Instead of endorsing a celebrity or an paying for an expensive billboard in Times Square, we actually invested time and money in searching the globe for a 360 Degree Polyester Stretch (performance) fabric that prevents this problem from happening.

The 360 fabric we use is designed to move with you, while staying in place. It is also moisture wicking with anti-odor properties.

What this means to you: Tommy John’s performance underwear doesn’t ride up your leg. The unique 360 Degree Polyester Stretch (performance) fabric stretches. in all 360 degrees that your body moves during activity to solve another problem we feel existed in the underwear market.

  • Softest cotton fabric you will ever wear
  • Dries 4-5x faster than other brands

86% Pima Cotton, 14% Spandex

History: Cotton is the most prevalent fiber in the world and is renowned for its breathability, strength and versatility.

Most of the men’s undergarment market uses only 100% cotton material. This is a strategy we believe to be deeply flawed. We begin with cotton, but also add stretch to the fabric for shape retention.

Problem: Traditional cotton undergarments tend to shrink up to a size smaller than you are, stick to the skin, cause you to overheat and sag when wet due to the weight of the fabric. They also stretch out over time, which cause an "A-frame" or "tented" appearance. It’s just a matter of time before these type of undergarments become rags for washing your car.

What we did: We found a super lightweight and smart fabric technology that uses a special cooling process to increase the absorption capacity of the fabric. Moisture is then transferred to the surface of the fabric where it easily and rapidly evaporates.

The non-pilling feature ensures garments retain softness and smoothness with NO PILLING; wash after wash.

What this means to you: Our Cool Cotton underwear remains as silky smooth as the day you bought them and keeps you cooler and drier than your traditional undergarments.

Wash after wash, your garment stays looking good as new, allowing you to continue wearing it for a very long time. Yes, this cooling technology is pretty awesome stuff!

  • The softest fabric on the planet
  • Anti-Pilling Micro Modal fabric

90% Non-Pilling Micro Modal, 10% Spandex

Micro Modal is resistant to shrinkage and fading. Because we add stretch to the fabric for shape retention, the final product is not considered a 100% natural product.

History: Micro Modal,the world’s softest fiber, it makes textiles naturally more beautiful. Micro Modal fabric is feather-light and feels like a second skin on your body. The fiber is made from beech wood, a natural raw material. The natural softener makes Modal fabrics pleasant to the touch, even after repeated washing.

Problem: If you have worn modal products before, you know the problem is that they “pill” very quickly and look older, faster.

What we did: We are proud to use a revolutionary, non-pilling micro modal fabric that ensures garments retain softness and smoothness with NO PILLING; wash after wash.

What this means to you: Tommy John micro modal underwear remains as softly smooth as the day you bought them. The non-pilling fabric finishing process cleans away the fuzzy surface fibers that eventually cause pilling.

Wash after wash, your garment stays looking good as new, allowing you to continue wearing it for
a very long time. No more pilling is pretty awesome.

Other Information

Our Guarantee

100% satisfaction is guaranteed for first time customers, or you will recieve a full refund. Read more about our guarantee

Customer Care

Need assistance? Call or email our Customer Service Representatives at 1-800-708-3490 or



Tailored Stretch™ Technology ensures undershirt stays tucked in all day long


For all body types from average shape to athletic cut torsos


Silky soft and lightweight Micro Modal for enhanced feel


Gives you a tailored and form fitting look


Moves with you, while being invisible under outershirts


Controls body temperature to keep you cool and confident


Prevents bacon neck appearance


Tagless label for maximized comfort

Reviews for Second Skin Stay Tucked Crew Neck Undershirt

Matt L

5 months ago , Swedesboro NJ
Height: 5'10" Weight: 164 lbs. Chest: 40" Waist: 32" Size: Medium

Great feel disappointing neck

The shirt has a great feel, unfortunately, after two wears the neck start to look like bacon. Since the neck looks like bacon, I cannot wear with an open collar shirt. Not really worth the price.

Glenn M

5 months ago
Height: 6'4" Weight: 250 lbs. Chest: 46" Waist: 38" Size: Extra Extra Large

Got me wearing Tee shirts again

XXL Shirt and XL sport drawers. Nice and smooth under my clothes. Plenty long when stretched over the shorts. Wash them in cool water and hang up to dry - My Mrs. loves the look and the feel of the fabric. She likens it to her favorite camisole tops. That is a good thing.

How I feel when I wear this product:

Smooth and comfortable

Max R

6 months ago , Richmond TX
Height: 5'7" Weight: 175 lbs. Chest: 35" Waist: 28" Size: Medium

Not worth the premium price

Undershirt wore great the first few times, then the collar started "slumping" and exposing the lower neck / upper chest area. It became uncomfortable to constantly adjust the neck of the undershirt. Essentially the $40 price tag is too steep for an undershirt that resolves some issues but introduces new ones.

How I feel when I wear this product:


Erik D

6 months ago , San Francisco CA
Height: 6'1" Weight: 175 lbs. Chest: 38" Waist: 32" Size: Small


I've read some of the negative reviews, and completely disagree. The shirts fit snugly, and the collar does not "bacon", nor does the shirt roll up in my pants. The lightweight and tight fit feels good on my body. The shirt keeps me warmer in the cold, and cooler in the heat. While far more expensive than many other shirts, I find it to be completely worth it. I don't have problems with underarm sweat.

How I feel when I wear this product:

fit sexy secure

Lee N

7 months ago , Baltimore MD
Height: 5'8" Weight: 175 lbs. Chest: 42" Waist: 34" Size: Large

Good but not Great

I found out about Tommy john a while ago but was hesitant to pay that much for underwear. But recently I took the plunge and bought a starter pack. The fabric is amazing to touch but very thin, actually see-thru. It wasn't sturdy at all. The boxers were fine but not real supportive. The biggest disappointment was in the shirt. Yes, it did stay tucked which was nice but the end of the shirt rolled up and created a "roll bar" across my behind. Wasn't real flattering under the tux pants. I basically had rolled up panty lines and that wasn't cool at all. Had to keep going the the restroom to smooth it all back down again. Big disappointment. I would be leery to buy more at their price.