Features Lightweight Inmold Technology fuses the inner EPS & shell together: more durable & ventilated plus increased protection & energy dispersion Multiple air vents for optimal ventilation & cooling Quick release buckle for easy single-handed fastening & release Retention system for perfect individual fit & easy one-hand adjustment Two shell sizes for optimized fit Exceeds EN1078 & CPSC safety standard for bicycle Helmets Weight 300-350 gr. Note Please be aware, as long as nothing else is written in the item description: All helmets will be delivered only with the ECE certification by default, even if it is shown differently. all helmets that have a visor will be delivered with a clear visor, even if it is shown differently.