Sturdy helmet construction to provide maximum protection. The multi-shell in-mould technique ensures a reliable bond between the outer shell and the EPS material, making it a safe and durable choice for any active individual. KEY FEATURES Zoom Ace MTB: Height-adjustable adjustment system to fit the head circumference Ponytail compatibility: Helmet well suited for ponytail wearers Laterally adjustable non-slip TriVider webbing distributor Moulded lower shell for added durability QUIN ready - easy upgrade with the separately available QUIN chip for fall detection GoggFit: Device that allows a pair of goggles to be fixed to the helmet when the athlete doesn’t need them while riding. Ventilation: excellent ventilation for this helmet type due to 6 air inlets and 8 air outlets Bug mesh: thorough protection against insects