The original UA training T-shirt was called “Performance Grey” and it was built from a lightweight, natural-feeling synthetic that can wick sweat and dry fast. It allowed athletes to stay cooler & drier. The UA Tactical Tech™ T is designed for our athletes in uniform, with a tonal logo so it can be worn on the job. Loose: Fuller cut for complete comfort WARNING! This product will melt when exposed to extreme heat or open flames, posing a risk of serious injury where melted product comes into contact with skin! Lightweight UA Tech™ fabric has a softer, more natural feel for unrivalled comfort Signature Moisture Transport System wicks sweat away from the body Smooth, chafe-free flatlock seam construction Polyester 100% Polyester Imported