Men's UA Threadborne Seamless Tank

Style # 1298910
Height: Size: Fit: Fitted
Mens UA Threadborne Seamless Tank
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Size and Fit Guide
Due to limited quantities, only 100 allowed per customer.
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Height: Size: Fit: Fitted
Men's UA Threadborne Seamless Tank

Product DNA

  • Fitted: Next-to-skin without the squeeze
  • Soft knit fabric with engineered mesh ventilation, mapped to the places you need it most
  • Nearly sew-free construction to eliminate chafing
  • 4-way stretch construction moves better in every direction
  • Material wicks sweat & dries really fast
  • Anti-odor technology prevents the growth of odor-causing microbes
  • Polyester/Nylon
  • Imported


This is what makes our gear work harder—and smarter—than anything else out there.


The original innovation our founder dreamed up. This super-breathable fabric wicks sweat and regulates body temperature so you feel cooler, drier, and lighter than ever.

Review Summary

22 Reviews

Great fit!

Awesome material. Fits really well, breaths really well. Very comfortable.

Great tank, but small defect!!

I was super excited to use this tank at the gym as I’ve been looking for a great fitting tank! But as I was about to put the tank on I noticed a small hole underneath the arm opening and immediately deflated the freatfeelkng I had! I’m not sure if it’s a defect or if something happened while it was being shipped but it is a bit of a bummer that it has that hole! The tank is great but that really puts a damper on my initial feelings about the tank.

Odd Sizing

I have a ton of UA stuff and have had the regular issues with sizing in the different types of clothing they make but this one takes the cake. Decided to give it a try based on the reviews but I honestly don't see what the other reviewers like about this. It fits very oddly. Good on the upper body and then super tight at the bottom. I bought a medium which is what I would normally wear. I am 6ft 185lbs. I don't think the large would fit well either so just returning it.

Good but the usual sizing drama with UA

First of all I love this piece -- Breathes well, moves well, looks great -- buy it. Throwing this out there to try to help gym guys in sizing. I've been wearing UA since the beginning years ago and I've seen the brand morph Which was once a brand for serious athletes has crossed over into a brand that also caters to those who don't workout but wear workout gear(athleisure) and don't really go to the gym(there's nothing wrong with this BTW ) This reflects this in the cuts of the clothing. I workout constantly and am built like an NFL DB - 6'1" 190 32 inch waist - fit. I like my shirts fitted for the gym but not skin tight. Large fits well up top but really balloons out some at the bottom to again fit those who just wear this around town and don't lift( beer gut) Medium is what I ended up with as it fits better in the midsection but is tight on shoulders but doable "fitted" is the UA cut on this piece but both this and "loose" usually end up with the same issue - L is ok up top but balloon looking midsection - M is tight thru upper torso but fits midsection well.(and again, i'm looking for a clean look - not compression) So plan accordingly. UA seems to be streamlining their cuts a bit as the Larges seem SLIGHTLY smaller than they were a few years ago but I would try EVERYTHING on before buying. Hope this helps my fellow gym rats.

Wow, best tank ever.

I really wish there were more colors and that it wasn't being discontinued. This thing can take a beating, perfect for the gym, all the way down to the field. It's very cool and comfortable, but not so that if worn on a colder day you'd be automatically freezing. Simply put, the best tank top I have ever owned.

Great Tank - Arm hole a bit too big

The threadborne line is incredible from the pants to the polos and the threadborne seamless in particular are the nicest of the t-shirts. I would rank the seamless tank top a 4 of 5 stars because of the arm hole which I find unnecessarily too large. I have a stocky build and the arm hole almost shows my obliques. It's more like a muscle tank than a fitted tank so for a tank top I prefer the Threadborne Siro because the arm hole contours around your chest and doesn't dangle like the seamless. It is fitted so I normally wear a 2XL in a tank top so I needed the 3XL and it fit just fine but of course is a little long.

Best tank

This tank is super light. I used it to run outdoors and it kept me cool and also kept the sweat away. You can't beat this tank, especially the price point.

Great Performance

The shirt fit very well and was a good fit. The thread was very lightweight and great for any occasion!

Great workout tank

Tank is great. I have worn several different brands of performance tanks in the past, and this is so far my favorite. Seems very durable and the fit is right on to my liking.

My new go-to workout shirt

The Threadborne fabric is VERY comfortable and this particular shirt is perfect for me. The size is a bit smaller than normal -- I'm 6'1", 198 lbs (I'm in good shape) and I use a Medium size. The shirt is not baggy, it is fitted but not too much. It is my new workout shirt!