Northstar Trading Tropper Sheepskin Hat Size Medium Gray Made in USA This is the quintessential winter hat for everyone who needs a little extra. With large furry flaps that can be worn up, down or back, there is nothing cozier to wear in the colder seasons. It is truly hard to describe just how good they feel! Our Troopers have made their way all over the world since we started making the over 40 years ago. Available in 4 different finishes, 100% American sheepskin. To determine your hat size, measure the circumference around your head with a measuring tape or string, keeping the string level and firm, across the temples and above the eye-brow ridges. Measure the length of the string. Check the size chart below to find the closest match. For in-between measurements, use the next size up. Tip for gift-buying: The average female head size is medium. The average male head size is large. *Sheepskin color tones vary slightly from photos above.