Second Skin Stay Tucked Crew Neck Undershirt Second Skin

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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 receive 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 Contact Us



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

Shaun J

16 days ago , Raleigh NC
Height: 5'10" Weight: 185 lbs. Chest: 35" Waist: 34" Size: Large

Tighter than the cotton...which is good

Fit's tighter than the cotton and get's the job done a lot better. Only room for improvement is the neck area where I would like to see more strength and less flexibility. All in all it's pretty sweet, just watch that neck.

As per my other review, remember that customer service is lacking so once you buy you'll be on your own. But for the most part it's a solid product and I'd get it again.

Chris D

20 days ago , Fulshear TX
Height: 6'2" Weight: 192 lbs. Chest: 42" Waist: 34" Size: Large

Still looking for perfection . . .

Bought one of these undershirts in large to try it out.
Pros: Great feeling, really soft fabric. Pretty much did stay tucked in, even after I hit some golf balls at lunch. I also felt like it kept me cooler than my normal cotton undershirt.
Cons: Sleeves were a little short for my liking and did feel like they rode up a bit. Guess I'm not used to really short sleeves that fit tight. Not necessarily bad, but might take some getting used to. Think I will try an XL and see if it fits better.

Jeramy H

about 1 month ago , Yosemite CA
Height: 6'3" Weight: 195 lbs. Chest: 40" Waist: 35" Size: Medium

Great undershits!

Great undershirts. Bought one a few years back and they are now all I wear as undershirts. Highly recommended.

Chris P

about 1 month ago , Winooski VT
Height: 5'6" Weight: 160 lbs. Chest: 35" Waist: 33" Size: Medium

Blows other undershirts out of the water

I was a bit skeptical at first about how I'd be blown away by an undershirt, but it feels absolutely amazing and stays put all day.

How I feel when I wear this product:


Brian K

about 1 month ago , Chicago IL
Height: 5'11" Weight: 195 lbs. Chest: 46" Waist: 34" Size: XL

Great T-shirt

After wearing the t-shirt just once, I was never going back to a regular shirt. I like how it doesn't ride up and so far, I see no yellow stains under the pits and I've had these for over a year now. It has kept me pretty cool in the summer months too.