Hey everyone, thanks for looking at my listing!! Great protection, awesome look and an extremely unique design. It's among the few German style helmets with an actual DOT approval so it's legal to wear. Less is more, the helmet uses a new EPS liner which allows less padding in the helmet with the same amount of protection. In some cases it's literally half the thickness of others. Some companies stuff their helmets to get the desired size, this is the cheap way out and a small-medium helmet will look ridiculous on your head. OUR helmet is made of various shell sizes to ensure a perfect fit and a good look. -DOT Approved -Weighs under two pounds. -Lightweight Durable Outer Shell -Special protective EPS liner -Stainless Seal Dual D rings. -One year manufacturers warranty SIZE CHART ADULT SIZES INCHES CENTIMETERS XS 20 1/4 - 20 7/8 52 - 53 S 21 - 21 5/8 54 - 55 M 21 3/4 - 22 3/8 56 - 57 L 22 1/2 - 23 1/8 58 - 59 XL 23 1/4 - 24 60 - 61 XXL 24 1/8 - 24 7/8 62 - 63 I have all sizes, just ask me if you can't find the listing with yours!