- Classic timeless design of this knit hat for kids makes it the perfect every day beanie hat all year round. Be ready for anything this spring, fall and winter - 100% premium acrylic yarn that retains both its color and shape for wash after wash to ensure it keeps you looking good - Knit hat cuffed beanie is one size fits all for Kids. Easily Stretching. Keeps your head warm covering up the ears and keeps you cosy under the hat. It will flawlessly fit all Kids head sizes, large and small