Natural shearling hats are cozy & warm, long lasting, and have water resistant properties. They are a perfect balance of function and fashion. Features:• 100% Genuine Sheepskin• Natural twin-faced shearling• Water repellent leather• Merino wool insulation• Breathable and comfortable fit• Ear flaps can be secured up or down with leather straps• Warm in temperatures to 15⁰F• Made in Europe SizingTo determine your hat size, measure around the circumference of your head with a flexible measuring tape. Position the tape over your eyebrows and just above your ears. You can also use a piece of string in place of the measuring tape, and then measure the length of the string. Use this size chart to determine the best size. Label Sm Med Lrg X Lrg XX Lrg inches 21 1/2 22 1/4 23 23 3/4 24 1/2 cm 54-55 56-57 58-59 60-61 62-63 US size 6 3/4 7 7 1/4 7 1/2 7 3/4 Buying TipsIf you are in between sizes, then we suggest sizing up to the larger option.If you are buying a hat as a gift, keep in mind that the average male head size is size Large and the average female head is a size Medium