The Under Armour Men's Tech 1/4 Zip Top is made from lightweight UA Tech fabric for an incredibly soft feel for comfort. Designed to provide a full range of motion and incredible breathability the 1/4 zip top features a moisture transport system to wick sweat away from your body. Additional features include anti-odour technology and smooth flatlock seams to prevent chafing. - A.D 1/4 Zip Top Loose: Full loose fit for enhanced range of motion and breathable comfort no matter where your workout takes you Lightweight UA Tech™ fabric with an ultra-soft natural feel for unrivalled comfort Moisture Transport System wicks sweat away from the body Anti-odour technology prevents the growth of odour causing microbes Smooth flatlock seams allow chafe-free motion Solid embossed and twisted styles Polyester