EXCEPTIONAL PROTECTION AND ADJUSTABILITY All new for 2023 is the Leatt 4.5 neck brace, with 2-way thoracic adjustability for great fit, it sits between the 3.5 and 5.5 in the way of adjustment and price. A composite matrix platform offers not only strength but also a very lightweight neck brace you won’t know your wearing. Our neck braces are designed to transfer potential injury producing forces away from the neck during an impact, to other body parts in a safe and efficient manner, thereby reducing your risk of a neck injury. Feel protected and ride with confidence. If you are looking for more adjustability, take a look at the 5.5 Independently lab and rider tested, proven to reduce neck forces and neck injuries through transferring the load during an accident away from the fragile bones in the neck. *Up to 89% reduction in critical cervical spine injuries *Collarbone injuries up to 45% MORE likely WITHOUT a neck brace *Independent Moto motorcycle study by Action Sports EMS 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 as Personal Protective Equipment 89/686/EEC Weight: from 575g (1.3lbs) Sizing: S/M - L/XL - XXL Plastic Free Recyclable Packaging 1023050200 S/M- SMALL 1023050201 L/XL-LARGE 1023050202 XXL-XXL