For XC use. Integral In-Moulding Shell Construction The entire external surface of the helmet is fused, reinforcing it and increasing its longevity. Safe-T Twist 2 Occipital retention system using our unique roller with a fast and easy one hand adjustment. Removable Visor Protects the face from branches, mud, sun, rain; and is easily removed. 21 air intake and exhaust ports. Weight: 250 g. One size: M: 54-61 cm.