Engineered collarbone cut-out to keep your helmet rim away from your most fragile bones Optimal helmet rim striking platform is designed to redistribute neck forces and provides the helmet with freedom of movement CoreFlex split rear folding thoracic strut is designed to work with the body’s natural movements for a more comfortable fit and break away before applying excessive pressure to the back Two-way adjustability for the rear to ensure a great fit Composite matrix platform allows for efficient reduction in neck forces Sculptured, split front for improved comfort and fit Injected, durable and easy-to-clean foam padding CE tested and certified to the PPE Regulation (EU) 2016/425 Weight: 547g (1.2lbs) Sizing: S/M Plastic Free Recyclable Packaging