Flexfit Fitted Mid-Profile Structured Wool Cap (Kahki, Small/Medium) 83/15/2 acrylic/wool/spandex (Kahki is 100% acrylic), Permacurv visor, silver undervisor, Sewn eyelets, Sizes: S/M (6 3/4-7 1/4") Permacurv visor, silver undervisor Sewn eyelets Sizes: S/M (6 3/4"-7 1/4"), L/XL (7 1/8"-7 5/8")