Men's UA MK-1 Short Sleeve

Style # 1323415
Height: Size: Fit: Fitted
Mens UA MK-1 Short Sleeve
  • Availability: 
Size and Fit Guide
Due to limited quantities, only 1,000 allowed per customer.
The product can't be added to the bag
Height: Size: Fit: Fitted
Men's UA MK-1 Short Sleeve

Product DNA

The UA MK-1—short for Mode Kit 1—is an entire system of light, sleek, breathable warm-ups and core training gear that layers together to give you every advantage for any workout. Speed, agility, strength, cardio, in the gym, on the turf…whatever you're doing, just build your kit and get to work.
  • Fitted: Next-to-skin without the squeeze
  • HeatGear® fabric is incredibly 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
  • Imported

Review Summary

41 Reviews
76% of reviewers recommend


Runs small Runs large


Min. Max.


Min. Max.


The fit is perfect and the material is great. So comfortable. Already have three for training. Highly recommend!

Good top

Fits well and so far washes well. Very pleased. Will buy another one.

Fits perfect

First time Buyer!! Would’ve been nice if they gave some sort of incentive!! Good quality product fits well makes you feel good about yourself.

Amazing shirt!

This Shirt was amazing. I feel like an athletic rockstar when wearing this shirt.

Great t shirt

Great fitting shirt. Very light and breathable and perfect for training in.

Great Lightweight Activewear

Fits very nicely, comfortable and flattering. Lightweight, great to keep cool during a good workout

True to Size

Ive worn this t shirt in the gym several times now and I have to say that its very comfortable gym shirt. Fit is slightly loose for my build around the midsection and a little tighter around the arms. I'm 86 Kg and 185 cm and purchased Large.

Great for workouts

Excellent fit for workouts as its quite long in the waist. Nice quality light material. Only complaint is that the material sticks up slightly on the shoulder where the seams meet.

Perfect Performance Tee

I love this tee! The cut is excellent - breathable, yet fitted. It's so great for beach weather where I live. The material lets you breathe and feel dry without the hot, heavy, weighty feel of typical cotton. My work allows black tees and this one is perfect for moving around in. Thanks Under Armour!

Fits perfectly

Fits perfectly, very light and good to workout!!!!