The Shark Hat is hand-knit from 100% wool and has a soft Polyester fleece lining. The Hat comes in 2 sizes, so it's suitable for all ages, whether toddlers, kids, or adults. Our Shark Hat is hand-knit and hand-made in Nepal from High-quality Wool. Size guide: Small - 1-4yrs (kids) Medium/Large - 5 (including adults!)