The Nike Vaporknit III Short Sleeve Jersey levels up the breathability of Nike VaporKnit technology with quick-drying, high-elasticity yarn engineered to reduce cling and added weight from moisture. This product is made with 100% recycled polyester fibers.Nike VaporKnit technology combines lightweight cooling, reduced cling and precision fit.Size: XLQuick-drying, high-elasticity yarn that stretches with you as you move.Precision fit conforms to your body for a personalized feel.100% PolyesterArmpit to armpit: 22 3/8'' (Measurement flat on table)Machine washable1/2