Under Armour HeatGear Full T-Shirt.
Just a T-shirt? The National Football League didn't think so. Under Armour HeatGear products have been used for years to help pro athletes stay cooler when worn under their heavy equipment. Now, this same technology is available for use for law enforcement officers.
Designed to be worn under ballistic vests, the Under Armour HeatGear T-Shirt is constructed of the very highest quality micro-fiber to wick moisture away from your skin. The quicker evaporation process helps your body keep cooler and more comfortable under pressure (and the blazing sun).
This is a stretchable tight fitting garment. It's snug fitting pattern actually helps this high performance fabric function.