The Steelbird Robot SBH-17 has High Impact ABS Material Shell. Multi layer EPS (Thermocol) High Density and low density For more Safety with Air Channels. Micro-Metric Buckle meeting European Standards. The ventilation of the helmet’s upper part uses the AIR BOOSTER system. Innovative ventilation system is also equipped with an air intake in the chin guard, an air intake in the frontal & Top area and two rear extractors recycling air inside the helmet. Italian Design Hygenic Interior With Multipore Breathable Pedding Neck Protector For Extra Comfort Extra Comfort Padding Polycarbonate Anti Scratch Coated Visor Quick Release Visor mechanism Kit. Odourless Mouth Guard Wide Colour Range Available Only In Mat Finish Screw Free Lower Ratchets Designer graphics.