About this style
This Under Armour training top is your ultimate performance base layer. The compression fit, delivered through tough, lightweight HeatGear® fabric, provides a supportive, locked-in feel. Strategically placed stretch-mesh panels provide ventilation where you need it most, while the updated ergonomic design enhances durability. A high mock neck offers additional coverage, and the material wicks moisture to keep you dry.
Details & care
Details & care
Fit and style
•
Regular fit
Composition
84% polyester, 16% elastane
Care
Machine wash according to instructions on care label
About Under Armour
About Under Armour
Train at your best, no matter the weather, with Under Armour's innovative clothing, footwear and accessory designs.
Discover more in Tops
Reviews (63)
Amazing
Originally posted on Under Armour
Yes, I recommend this
Such a great buy with amazing quality and super comfortable!
Helpful?
Great for a Cool Spring Day
Originally posted on Under Armour
Overall I like this Heat Gear Base Layer : At 6 Feet - 225 I normally wear XL, this XL is a little on the smaller side but not too bad. I have purchase many UA items in the past, from Base layers to Jackets and I have been happy with most of them.
Helpful?
Light and Tough
Originally posted on Under Armour
Yes, I recommend this
The heatGear is great warm weather compression and indoor training. Can wear inside and outside.
Helpful?
Great Hockey Base Layer Shirt
Originally posted on Under Armour
Yes, I recommend this
I am 6’6” with a seven-foot wingspan, and this shirt in size large-tall fits very well as a base layer under hockey pads. The torso is long enough that it stays in place through practices and games, and the sleeves are actually the proper length for my arms, leaving no exposed skin above my gloves.
Helpful?
Replied
30 March 2025
Thanks for the awesome review! 🙌 We love hearing that our shirt is a perfect fit for your game! 🙌 Sounds like it’s doing exactly what it’s supposed to—no gaps, no slip-ups. Keep dominating on the ice, and we’ve got your back for all your gear needs! 🏒💯
Great Light Weight Mock
Originally posted on Under Armour
Yes, I recommend this
This mock is a great light weight shift to wear under your uniform. If you are looking for something warm, then I suggest that you go with the Cold Gear one.
Helpful?
Quality Item
Originally posted on Under Armour
Yes, I recommend this
Just what we were looking for! Perfect for my son for the early baseball season. Great price with our teacher discount too!
Helpful?
1st Time Buyer
Originally posted on Under Armour
Yes, I recommend this
Under Armour comes highly recommended by friends and co-workers.
Helpful?
Great feel! Great fit!
Originally posted on Under Armour
Yes, I recommend this
Very comfortable mock base layer for coaching.Fits great and free range of movement. Great for playing and coaching.
Helpful?
Product fits very well, great to have around
Originally posted on Under Armour
Yes, I recommend this
The products I ordered fit great, great to have around them i wear them almost everyday haha. The black long-sleeved shirts keeps me so warm, almost warmer then my winter coat!
Helpful?
Length is great just a tad tight
Originally posted on Under Armour
Yes, I recommend this
The material is excellent for keeping cool and the length is decent for my tall slim build. It is a tad tight though and I wish the shirt was a bit looser. I tried the XL tall which is too loose.
Helpful?
Great shirt
Originally posted on Under Armour
Yes, I recommend this
These shirts are very comfortable to wear. The only thing about them is the sleeves are a little longer than I like, but that isn’t stopping me from buying more.
Helpful?
Lightweight and warm
Originally posted on Under Armour
Yes, I recommend this
Not quite as warm as my cold gear but it does do a great job in the right weather situation for me. Top quality that looks like it will really last.
Helpful?
This product is great!
Originally posted on Under Armour
Yes, I recommend this
This long sleeve is great. I would recommend to anyone. I bought this product to wear under my golf polo in the winter time
Helpful?
Perfect for my needs
Originally posted on Under Armour
Yes, I recommend this
I wear these under my work shirts and like the compression fit. Keeps me warm, is plenty flexible, and works far better than other bulky thermal gear I have used in the past. Also works great in the gym under a sweatshirt when I am working up a solid lather.
Helpful?
Continued great shirts!
Originally posted on Under Armour
Yes, I recommend this
I have owned and used UA Heatgear shirts for any years. This one is a replacement for one that is worn out.
Helpful?
No one mocks this mock !
Originally posted on Under Armour
Yes, I recommend this
Great lightweight compression material … breathable with precise support where it’s most needed … the mock neck is comfortable and not binding … great for layering
Helpful?
Very comfortable shirt
Originally posted on Under Armour
Yes, I recommend this
I like the way it fits, tight but not too tight.. great feel great look
Helpful?
Warm and Comfortable
Originally posted on Under Armour
Yes, I recommend this
These kept me both warm and very comfortable while being outdoors all day in sub twenty degree weather. Highly recommended!
Helpful?
That product is incredible
Originally posted on Under Armour
Yes, I recommend this
I love it and I definitely will recommend it
Helpful?
Perfect
Originally posted on Under Armour
Yes, I recommend this
My man is 6'3" & wanted more of these for under his clothes for working in a cold warehouse in the winter. Fits well & works well
Helpful?
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