NIKE Mens Jordan XI Sneaker Cap Legned Blue/Black/White 631666-448 100% polyester. Back of front: 80% polyester/20% cotton. Underbill: 100% cotton Six-panel design with interior taping for comfort Textured front graphic for signature style Snap closure at back for a custom fit Embroidered eyelets at each panel for breathability Fabric: Body: 100% polyester. Back of front: 80% polyester/20% cotton. Underbill: 100% cotton