New Under Armour Men's Extreme Twill Base 1 4 Zip Black Gray Medium Fitted Medium:Black Gray 90% Polyester 10% Elastane Imported Imported Aqua Navy 90% Polyester 10% Elastane Imported Imported HeatGear fabric is ultra soft & smooth for extreme comfort with very little weight Mesh back & underarm panels deliver strategic ventilation 4 way stretch construction moves better in every direction Material wicks sweat & dries really fast Anti odor technology prevents the growth of odor causing microbes 0 is powered by the revolutionary NXT FORC3 air flow platform which was precision crafted to apply variable levels of load to the respiratory muscles via dial able air flow adjustment 100% Polyester Imported Zipper closure Machine Wash Scent Control technology to keep you undetected Substantial twill fleece fabric is durable incredibly warm & insanely comfortable Stretch panels under arms for enhanced mobility where you need it ¼ zip front with stand collar allows you to dump excess heat