Men's UA MK-1 ¼ Zip

Style # 1306430
Height: Size: Fit: Fitted
Mens UA MK-1 ¼ Zip
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Size and Fit Guide
Due to limited quantities, only 10 allowed per customer.
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Height: Size: Fit: Fitted
Men's UA MK-1 ¼ Zip

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 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

10 Reviews


Runs small Runs large


Min. Max.


Min. Max.


I've mainly used in my normal day wear, at gym work and outdoor activities, best feeling of free movement, dries very fast, completely recommended for heat conditions.

Great for layering or by itself.

This performance shirt is perfect for layering under a golf polo or as a shirt in the gym. It’s not compression but it is fitted and sheer. After a workout the shirt is dry..amazing.


Great for everything, lightweight and warmth. Used while in fight and good for easy packing.

An average longsleeve

There is in my opinion nothing special about this LS shirt. Due to the length of the shirt, I had to size down so the shirt wasn't like a dress. I am 5'9, 160 pounds and usually wear a large in UA fitted apparel. The sleeves of the medium fit like heat gear compression on me which isn't necessarily bad, the large sleeve probably would have been more like a fitted feel but the body was just too long. A feature I do enjoy is the breathable back of the shirt, almost like a mesh. It's not bad for hitting the gym, but I'll most likely use this on the tennis courts this spring over gym and casual use.

Very flattering... and still comfy.

This has got to be one of the best fitting L/S workout shirts on the market! I'm 6'3/235lbs and the XL fits perfectly--Good sleeve length and room through the body w/out looking baggy.

Stylish and Comfortable

This particular 1/4 zip is super comfortable and the ventilation keeps me cool. It’s not really fitted but it will definitely show off your muscles in your chest, shoulders and arms, which is another reason why I love this. This is a great piece of clothing for the fall and or the Spring. Do yourself a favor and purchase this product. [This review was collected as part of a promotion.]

Very good material

The fabric is very soft and breathable. Very comfortable shirt, only problem if it's a little tight in the chest area. Other than that, this shirts really nice. [This review was collected as part of a promotion.]

Very Comfortable and Light weight

This top is very comfortable and light weight. Surprisingly warm. I love the collar on it and wish it came in more colors. [This review was collected as part of a promotion.]

Great Shirt

I bought his shirt in 2017 and was happy with it. I bought two more in February 2018 in black with red trim and the second in green trim. They both fit great and like the original were light and fit great. This is a shirt that will keep the "gym" coolness away if you like to be warm while you are working out but it is not so heavy that you can use it to keep the fall or winter chill away without a jacket. I am completely satisfied with the look, stylishness and utility of the shirt. [This review was collected as part of a promotion.]

Great Pullover

This like all my UA gear fits and performs great. Will probably buy another one in a different color!!! [This review was collected as part of a promotion.]