Under Armour Mens Sportstyle Windbreaker Jacket There's a reason windbreakers remain a must-have in every athlete's closet. They're light, keep off the wind without being too hot, and they're built to move in. UA Storm technology repels water without sacrificing breathability. Wind-resistant materials & construction shield you from the elements. Lightweight, ripstop woven fabric is tough but comfortable. Mesh lining for greater breathability. Secure, zip hand pockets. Elastic cuffs help keep sleeves in place. 100% Polyester. MPN: 1361621.