Men's UA MK-1 Long Sleeve

Style # 1306431
$55.00 AUD
or 4 interest free payments of $13.75 AUD with learn more
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Height: Size: Fit: Fitted
Size and Fit Guide
Due to limited quantities, only 100 allowed per customer.
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Height: Size: Fit: Fitted
Men's UA MK-1 Long Sleeve

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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

27 Reviews


Runs small Runs large


Min. Max.


Min. Max.

Long sleeved T

Very comfortable long sleeved T perfect for running in cooler weather

Tightness around the forearms

The material is amazing; super comfortable and breathable. The only problem I had was it’s tight around the elbow and forearm region and feels uncomfortable because it then loosens out in the lower forearm and wrist area.

Very nice

Fits great and you don't feels sweaty at a reasonable price!


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.