AVID Aero Progressive EPS - a mix of different dense EPS provides both optimal ventilation and the best possible protection MIPS Air - ensures that in the event of a possible oblique impact, the helmet shell remains relatively securely attached to the head and protects the brain against rotational forces and certain injuries. At the same time, thanks to the improved technology, the helmet is comfortable to wear Strike-Cage - ensures maximum ventilation through large openings at the front Opti-Dock - secure attachment for glasses of all sizes In-Mold shell construction PerformanceClick-to-Fit System - optimally adaptable and comfortable adjustment system (can also be worn with a ponytail) Weight: 234 g (size M) Construction In-Mold Features MIPS , sunglasses garage Gender adult Main color multicolor Head circumference 52 cm , 53 cm , 54 cm , 55 cm Head circumference up to 55 cm Head circumference from 52 cm Adjustment system Click-to-Fit Usage range race Manufacturer's color name Coloria Closing system push-in closure Type/type Item