Thenice Washed Cotton Baseball Cap Adjustable Outdoor Sports Hat 80%Cotton 20% Polyester Circumference: 22.4-23.6inches / 57-60cm Brim: 2.75inches / 7cm. Crown: 4.7inches / 12cm One Size Fits Most. Adjustable buckle strap back Perfect for sports teams (baseball, tennis, outdoors),Hiphop or casual wear