Standard - Fullface A new standard in helmet design has been set with the introduction of the SR Standard. Designed from the ground up to provide unparalleled performance. Sizes: One Size: Small, Medium, and Large fitting pads are included with each helmet for a custom fit. Features: ABS injection molded shell. Multi-Impact molded EPP liner HOG2.0 Retention System - fits behind nape of neck for secure custom fit. ABS injection molded face mask Interchangeable compression molded closed-cell foam fitting pads with super plush material that hooks to liner Soft nylon webbing Stainless steel rivets and burrs to stop the corrosion Duraflex fasteners, adjusters, and stops Four-point retention system.