NIKE Mens Sportswear Advance AV15 Knit Jacket 58% Cotton/42% Polyester Soft, breathable fabric offers ventilated warmth Raglan sleeves allow natural range of motion Rib cuffs and collar enhance durability Zip mesh-lined pockets for secure, breathable storage Fabric: Body: 58% cotton/42% polyester. Mesh: 100% polyester.