Men's UA MK-1 Short Sleeve

Style # 1323415
35,00 €
Height: Size: Fit: Fitted
Size and Fit Guide
Due to limited quantities, only 1,000 allowed per customer.
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Height: Size: Fit: Fitted
Men's UA MK-1 Short Sleeve

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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

39 Reviews
74% of reviewers recommend


Runs small Runs large


Min. Max.


Min. Max.

Fits perfectly

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


Super comfortable, but runs a little looser. If you want a tighter shirt get a size smaller [This review was collected as part of a promotion.]


The MK-1 line is hands down my favorite so far released from Under Armour. They’re very comfortable and cut perfect for anyone that lifts. My go to shirts now for in and out of the gym. [This review was collected as part of a promotion.]

Best workout shirt I have ever worn

I am 17 roughly around 6’1” I now have two of these one in grey one in blue and a long sleeve one. The MK-1 shorts werent my favourite I still like the supervent and raid series but with that said the MK-1 shirts are worth it. They feel great and they work as amazing as a compression shirt but without the squeeze and more breathable. I sweat a lot so when I am working out its nice that with the back meshing letting air in keeping me cool, I dont get the shirt so wet. [This review was collected as part of a promotion.]

Great product to train

These new MK1 shirts are literally the best shirts to train in. Comfortable fit with optimal performance features like the vented back make this shirt a must for your training collection. I only buy the MK1 shirts now as nothing seems compare. [This review was collected as part of a promotion.]

Very effective moisture wicking

Great product. Fits well, and is really effective at wicking sweat away and keeping you comfortable. Also, it doesn’t smell bad as you sweat and dries quickly when washed. The only thing I would change would be to add about 4 cm to the sleeve length (but that is only because in prefer a slightly longer short sleeve). Recommended.

Comfort and quality

Great quality and perfect fit. Very comfortable clothing. [This review was collected as part of a promotion.]


Fits great! Functions good in the gym! Breathable which is nice. [This review was collected as part of a promotion.]

Comfortable , good fit ,

Material good for daily wear , good for warm weather and workout wear . Laindera well , and maintains fit . [This review was collected as part of a promotion.]

Us mk1

Have used this for tennis now past 3 weeks great in hot weather. Doesn’t stick to you.