DescriptionTriple 8 – Gotham MIPS Helmet – Matte BlackTriple 8’s Dual Certified Gotham helmet with the new MIPS technology. MIPS is a low-friction layer in the helmet that absorbs much of the rotational violence during a fall. The Gotham also features the patented Conehead EPS liner, Triple Eight logo vents and a subtle brim. No other helmet comes close to the comfort, safety and good looks of the Gotham with MIPS.Safety Certs: Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older and ASTM F-1492 Skate safety standards.Size Chart: XS/S: 18.9 – 21.3 in (48 – 54 cm) S/M: 21.7 – 22.8 in (55 – 58 cm) L/XL: 23.2 – 24 in (59 – 61 cm)