Key upgrades FlexForward kidney brake, Thermomax Sub Liner. Spine Independent spine with Vent Armor foam. Kidney One-piece with Flex Forward Break. Hips One-piece hip protection in a classic fit. Thigh protection Molded PE and HMD foam. Belt Wrap belt with quick release buckle. Adjustability Extension fit + 1 inch through zip opening. No design template Key upgrades FlexForward kidney brake, Thermomax Sub Liner Spine Independent spine with Vent Armor foam kidney One-piece with Flex Forward Break hips One-piece hip protection in a classic fit Thigh protection Molded PE and HMD foam belt Wrap belt with quick release buckle adjustability Extension fit + 1 inch through zip opening.