Women's UA HeatGear® CoolSwitch Run Shirt

Style # 1271523
Height: Size: Fit: Fitted
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Height: Size: Fit: Fitted
Women's UA HeatGear® CoolSwitch Run Shirt

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Product DNA

  • Fitted: Next-to-skin without the squeeze
  • UA CoolSwitch uses an exclusive coating on the inside that pulls heat away from your skin, making you actually feel cool & able to perform longer
  • Soft, incredibly lightweight construction delivers amazing breathability without sacrificing coverage
  • UPF 30+ sun protection
  • Signature Moisture Transport System wicks sweat to keep you dry & light
  • Lightweight, 4-way stretch construction improves mobility & maintains shape
  • Shaped drop-tail hem delivers enhanced coverage without looking big & bulky
  • Reflective logos deliver greater visibility on low-light runs
  • Imported


This is what makes our gear work harder — and smarter — than anything else out there.


The original innovation our founder dreamed up. This super-breathable fabric wicks sweat and regulates body temperature so you feel cooler, drier, and lighter than ever.


UA Coolswitch uses an exclusive coating on the inside of the fabric that pulls heat away from your skin, making you literally feel cooler & able to perform longer.

Review Summary

47 Reviews


Runs small Runs large


Min. Max.


Min. Max.

Best long run shirt!

This is the best running shirt for long runs! No more painful chafing on my upper arms (I'm not that heavy but I have fat arms!). The material is super light/thin (but not see through in black) so you have coverage but won't get overheated. I'm 5'1", 128 lbs, 34B and I got the medium which fits loose on my body. UA, please please make more of those half sleeve shirts!!

Sleeve length is amazing!!

I'm a nurse, and constantly moving at work. I love wearing this shirt under my scrub tops!! It's light enough that I don't overheat, and wicks sweat, if I do. I'm also rather self conscious about my arms, and really prefer sleeves this length, just above the elbow. These sleeves are very hard to find! I own 4 colors, and would like more, but the cost keeps me waiting until it hits the outlet, and then I have to pray they have my size left! Please, please, please continue to make this shirt, but, please come down significantly on the price. Thank you!!

I love it

I wear for running Very confortable I wish many colors please

Love, love, love this shirt!

I love the feel and weightlessness of this shirt! The 3/4 inch sleeve and the longer hem makes this my favorite running shirt! Would love to purchase 2 or 3 more, but not in black. Please offer in more colors.


The best!!! So lightweight, keeps me cool... perfect fit!! Love the 1/2 sleeves... any new colors coming in the future?


It keeps me cool and is just the right length in the arms and body. great shape. I just love it. Ahh.

Great shirt

Love this shirt. Fits well, keeps you covered and cool. Wish there were more color options.

Fijn shirt om in te sporten

Ik vind het een fijn shirt om in te sporten. Persoonlijk vind ik het mouwtje erg fijn, maar is daar in tegen niet te warm. De maat valt goed, net als de andere kleding van Under Armour.

My favorite workout top

By far, this is the best exercise shirt I've worn. So comfortable, light as a feather. *The only thing to be aware of is that, other than the BLUE, it is sort of sheer, so I ended up returning the orange.

Amazing shirt!

I own two Cool Switch shirts and I love them. The sleeve length is perfect, the cut of the shirt is flattering and they're very comfortable. I can sweat like crazy and the shirt stays dry and I stay cool. These are the only shirts I wear to work out. I'm ready to order more! Please offer more of these!