The shires karben graphite alx jockey skull cap brings together safety, comfort and a polished, luxe finish. A smart carbon wrap runs across the front with a matte black karben insignia, and the bespoke-fit dial lets you fine-tune the size for a secure, comfortable fit. The adjustable 4-point harness is wrapped in microfibre leather and fastens with a quick-release buckle, and front and rear air grills work with the 3d mesh liner to keep your head cool. It is certified to pas 015:2011 and en 1384:2023, with ce and bsi kitemark. Key features: certified to pas 015:2011 and en 1384:2023, ce and bsi kitemark bespoke-fit micro adjustable dial system durable sand-sprayed outer finish scratch-resistant carbon-wrapped front and rim front and rear air grills with a passive ventilation system shock-absorbing expanded polystyrene inner shell deeply padded comfort luxe liner with cooldry headband and thermoregulating 3d mesh crown fully adjustable 4-point harness with faux leather wrapped sides and quick-release buckle removable anti-rub chin guard machine-washable linings reusable drawstring storage bag sizes: 50-52cm, 53-55cm, 56-58cm and 59-61cm