LEATT 5.5 Neck Brace Men, WomenPremium Protection and Ultimate Adjustability 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 witout a neck brace Engineered collarbone cut out to keep your helmet rim away from your most fragile bones Composite matrix platform