For riders who prefer an open face but sometimes need an easily attached chinbar. Leatt&';s 360Adeg Turbine Technology couples with optimized impact foam to reduce rotational, low- and high-speed impact forces. Twenty vents give consistent airflow, the FidLock magnetic buckle provides easy on/off, and the Enduro 2.0 is versatile and ready for trail rides and sessioning the park. 360Adeg Turbine Technology with optimised impact foam Protects against high and low speed and rotational impact forces Lightweight polymer shell with removable easy pushbutton system chinbar 20 vents - work even at low speeds Leatt fit system with FlatLock Strap dividers and Fidlock buckle Moisture wicking, breathable, anti-odour and washable inner liner Adjustable visor with breakaway function for rotational impact force reduction Sunglasses dock port for easy, secure storage Optimal neck brace compatibility Soft touch and moisture wicking chin straps Weight with chin bar: from 690g (1.52 lbs) / Without chin bar: from 360g (0.79 lbs) Certified: AS/NZS 2063:2008, EN1078, CPSC 1203 Chin bar passes ASTM impact testing 3-year Leatt Helmet Replacement Program Plastic-free packaging Sizes: S 51-55 cm (20-21⅝ in) M 55-59 cm (21⅝-23A 1/4 in) L 59-63 cm (23A 1/4-24 3/4 in)