Smallest lightest DOT Beanie Helmet - Gloss Black / No Peak ALL beanie helmets now come with quick release straps! Smallest DOT shell size ever made Lightest helmet ever made Meets or exceeds D.O.T. FMVSS No.218 standards Sits low on your head Never have mushroom head again Made of Fiberglass Made in China Only use water to clean our helmets To measure your head for the correct size take a tape measure just above your brow around your head just at the top of your ears. If your head measures in between sizes order the size smaller. Our helmets should fit snug when new, they stretch and mold to the shape of your head. SIZE CM INCHES XXS 50.8 - 52.07 20 - 20 1/2 XS 53.02 - 53.98 20 7/8 - 21 1/4 S 54.93 - 55.88 21 5/8 - 22 M 56.83 - 57.79 22 3/8 - 22 3/4 L 59.05 - 60.00 23 1/4 - 23 5/8 XL 60.96 - 61.91 24 - 24 3/8 XXL 62.87 - 64.12 24 3/4 - 25 1/4