Men's UA MK-1 Long Sleeve

Style # 1306431
$60.00 NZD
Height: Size: Fit: Fitted
Size and Fit Guide
Due to limited quantities, only 10 allowed per customer.
The product can't be added to the bag
Height: Size: Fit: Fitted
Men's UA MK-1 Long Sleeve

Alternate Views

Product DNA

These are the go-to gym shirts for nearly every guy. The fabric dries fast to keep you cool and the streamlined fit cuts out any bulk or unnecessary material.

It's also part of the UA MK-1 system—gear that all works together to give you what you need in any training situation.
  • Fitted: Next-to-skin without the squeeze
  • HeatGear® fabric is ultra-soft & smooth for extreme comfort with very little weight
  • Mesh back & underarm panels deliver strategic ventilation
  • 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
  • 90% Polyester/10% Elastane
  • Imported

Review Summary

24 Reviews


Runs small Runs large


Min. Max.


Min. Max.


I now own two colours... Great comfortable long sleeve shirt.. Will probably buy a 3rd depending on colour.

Perfect for laying in cooler weather.

Brought this for my husband to wear under his half zip tops for some added warmth when walking. Great fit and length.

Like wearing a pillow when you workout

Bought it on sale and couldn’t be happier, I wear it when I run, workout and just in general. So to quote the amazing Shia LaBeouf “just do it” (not like the Nike one cause under armour is way better)

Under armour longer shirt

This shirt feels great. It looks good & it's great for cooler weather, but dont need a jumper

fits smaller than expected

I've owned lots of heatgear shirts over the years, so I thought I knew what to expect from this fitted shirt. It was a little tighter than other heatgear shirts in the chest, but in the forearms it was so tight as to be unwearable - and I don't have freakish forearms.

A great fit!

This long sleeve tee is the most comfortable, well-fitting shirt I have been able to find. It is tighter in the arms, which is great if you work out, but slim/relaxed in the torso, without being remotely compression-right. Currently my favourite piece of active gear.

worth it

great fit around arm length. very breathable and easy to move around when working out. does not restrict movements.

Fabulous material.

Durable, strong, and comfortable. Cool to the touch. Easy to wear under a jacket.

not true to size

terrible fit.. i believed your true to fit feature and i felt and looked like a sausage in this shirt. Returning this plus 2 others.....Absolutely no way i could wear this shirt!!!! So disappointed in UA.....

Good shirt

I'm an active 40 year old so I own alot of similar shirts. I found this to be bigger than I thought it would be but that works for me. I like the way it looks and it's comfortable