Men's UA MK-1 Sleeveless

Style # 1306433
$50.00 AUD
or 4 interest free payments of $12.50 AUD with learn more
Height: Size: Fit: Fitted
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 Sleeveless

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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

17 Reviews

A little tight

This is a nice shirt that it runs just a little tight which gives me an incentive to lose some of my gut. I would recommend getting one size bigger than what you think you need for this particular shirt.

I don't like the cut

Decent product but it's cut funny around the arm holes. The shirt has a tendency to bunch or pucker up where the arm hole meets the chest. It is cut long also. I'm still deciding if I like the extra length. It does keep your shirt from riding up over your shorts.

Great for indoor and outdoor wear..

Comfortable and relaxing....Like the sleeveless look...

Perfect casual&work-out shirt

This is my favorite shirt. Great at the gym. And great for casual wear or as undershirt. Super comfortable, super cooling when sweating. And fit is great, not too tight, not too loose. Perfect. [This review was collected as part of a promotion.]

Keeps you cool, fits just right

Like this shirt a lot - not too tight, not too baggy. Really shuttles heat and perspiration away from you skin, keeping you cool. [This review was collected as part of a promotion.]


Very comfortable and keeps you cool. A little on the expensive end however, I will purchase more. [This review was collected as part of a promotion.]

High Quality & great product!

I have purchased a LOT of similar products but now with UNDER ARMOR I am hooked. Their products are high quality, performance & great value. Highly recommended! [This review was collected as part of a promotion.]

Great Shirt!

I bought this shirt for the gym. All my other sleeveless shirts I made, and they were getting torn and worn out. This shirt has an amazing fit and the material feels incredible. It’s so breatheable and light. It doesn’t feel glued to you when you sweat either. Great job, UA! [This review was collected as part of a promotion.]

Amazing tank!

I sweat quite a bit and was looking for a good tank to wear that won't show the sweat stains. Love the idea of the grey in front with the black in the back. Very lightweight tank and super comfortable. I normally wear a medium in the fitted but had to size up to a large on this one, I am 6ft 185lbs.

Very nice shirt for casual wear and workout wear

I would definitely buy this again, it's a great shirt to show off your hard work and dedication [This review was collected as part of a promotion.]