90% Polyester / 10% Elastane. Material wicks sweat & dries really fast. Ultra-soft & smooth fabric for extreme comfort with very little weight. 4-way stretch construction moves better in every direction. Ergonomic seams allow greater range of motion. This dry fit workout shirts is perfect for a day of running,workout,athletic,gym,basketball,cross training,jogging,yoga,exercise,fitness,Physical and any other of your favorite sports.