Size chart: L: suitable for head size 54-56cm XL: suitable for head size 56-58cm XXL: suitable for head size 58-60cm XXXL: suitable for head size 60-62cm Cotton Liner The warm, comfortable, and stylish can be worn with earflaps tied on top or pulled down for extra warmth and comfort. One more variant - tied behind head so cheeks are open while neck is covered. This Russian Aviator style hat is perfect for protecting from winter winds and snow storms, soft, pliable and extremely beautiful. This hat will keep you cozy while looking stylish all winter long. Great for cold days outdoors, skiing, snowboarding, sledding, hunting or anytime you need to keep warm and in style. The hats are unisex - great Holiday / Christmas gift for both - men and ladies.