!!! Note: Since we also sell this helmet in our store, it is best to inquire about availability before purchasing !!! Full-face helmet made of polycarbonate with integrated sun visor (inside) that can be folded down Measure your head circumference at the widest point (above the ears) to find the correct size If you don't have a tape measure handy, take a piece of string or tape and measure the distance against a ruler Once you have the helmet on and secured, shake your head vigorously to see if the helmet slips. If he does that, he is too big Test whether you can get two fingers under the helmet. If so, the helmet is too big Wear the helmet for a while before your first ride. If you get a headache, the helmet is probably too small Gimbel Auto- u. Motorradtechnik GmbH | Kesslerstrasse 7 | 7