EN812 Hook and bar back adjuster High profile ABS shell Fabric 100% Cotton, ABS shell with EVA pad Size One size Specification Designed to protect against bumps and scrapes, secures easily with a Velcro back adjuster. The high profile ABS shell acts as a shock absorber and comes with a soft padded crown. It features eight ventilation ports for cooling. Conforming to EN812. Ideal for use where helmets are not required.