Outer Yarn: 40%Wool/21%Nylon/39%Viscose; Lining Yarn: 6%Wool/14%Nylon/80%Acrylic. THICK & STRETCHABLE – it could be pulled down over ears to keep warm in winter, soft and comfortable enough to wear in skiing, snowboarding, dogwalking, snow hunting or cold weather days. DOUBLE LAYER – the thick 2 layers woolen knitted yarn is durable and warm, and makes you feel toasty in winter. CLASSIC & UNISEX LOOKING – this visor beanie / radar hat / jeep cap looks fashionable and cool on both male and female, and could go with everything. ONE SIZE – best fits for 55-60CM 21.6-23.6 7- 7 1/2. The soft yarn provides a stretchable fit. WASHING INSTRUCTION – Hand wash with cool water, air dry; or spot clean.