HeatGear® is our original performance baselayer—the one you put on first and take off last. So we made it extra comfortable by wicking sweat and stretching so you can move no matter what.

Fast-Drying
Moisture Wicking
Keeps You Cool

Product Details

Super-light HeatGear® fabric delivers superior coverage without weighing you down
Mesh underarm & back panels for strategic ventilation
Material wicks sweat & dries really fast
Ergonomic design keeps seams off high abrasion areas & increases durability

Size & Fit

Athlete is 5'10" & wearing size LG

Compression: Ultra-tight, second-skin fit.

Specs & Care

Style #: 1361521
Write-in locker tag on back of neck for your initials or number
Body: 84% Polyester/16% Elastane
Mesh: 92% Polyester/8% Elastane
Imported
Machine wash cold with like colors
Use only non-chlorine bleach when needed
Tumble dry low
Do not iron
Do not use softeners
Do not dry clean

Reviews(138)

4.7

Recommended: 97%

118

138 Ratings

Comfort

Uncomfortable

Average

Very Comfortable

Fit

Too Small

True to Size

Too Large

What Customers Are Saying:

The product is highly praised for its comfortable, breathable, and snug-yet-flexible fit.
Customers highlight the shirt's effectiveness as a base layer, keeping them cool and supported during workouts and athletic activities.
The lightweight, breathable fabric and compression design are noted as key benefits, providing effective support and a stylish appearance.
While a few customers mentioned the shirt runs a bit small, the overall fit and sizing were positively reviewed.

This AI-generated summary is based on real customer reviews.

Images from Customers

Sleeveless UA Shirt

Spence24

10 days ago

[This review was collected as part of a promotion.] My son absolutely loves it. He wears it underneath his football pads. It wicks the moisture away from his body so he doesn't start to freeze as it gets cold when the lights go down.

Location: Roseville, CA

Reviews: 1

Votes: 0

Gender: Male

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Helpful?

Excellent Quality and Perfect Fit

10 days ago

[This review was collected as part of a promotion.] I purchased this sleeveless compression shirt a few weeks ago, and it exceeded my expectations. The material is lightweight, breathable, and keeps you dry even during intense workouts. The compression fit provides great support without restricting movement. Perfect for warm weather and long training sessions. I would definitely buy it again.

Location: Mexico

Reviews: 1

Votes: 0

Gender: Male

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Helpful?

looking good

Martin Pod

24 days ago

Super comfortable , like to wear under shirt or half zip, just looking good.

Comfort

Uncomfortable

Average

Very Comfortable

Fit

Too Small

True to Size

Too Large

Location: London, England

Reviews: 1

Votes: 0

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Helpful?

Q&A(5)

My son is 6’1” but is really slim- 140lbs. He’s worried the small will be too short. Any advice?

Betsy98

6 months ago

Hi, Betsy! The length of our HeatGear® Mock shirt is 25.5 inches for size small, 26 inches for size medium, 26.5 inches for size large, 27.5 inches for size extra-large, 28.5 inches for size 2XL, and 29.5 inches for size 3XL.

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UA Expert Heather V.

6 months ago

Helpful?

I am 5'8 and 160lbs I usually wear a size medium, do you recommend I stay true to size or go up by one, I have already consulted the size guide and are still unsure, what would you recommend?

Dripperton

2 years ago

Go with medium, and see the reactions you get! We're the same size, I just bought 2 white ones and love all the attention this one shirt brings!

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TraeDay

2 years ago

Helpful?

I’m wonder if Men's HeatGear® Armour Mock Sleeveless around the neck area is super tight?

DP20

4 years ago

The Men's HeatGear® Armour Mock Sleeveless does have a compression fit, but also has a significant amount of stretch and should fit comfortably around the neck!

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UAExpert

4 years ago

Helpful?

How would you rate our products and descriptions?