Key upgrades FlexForward kidney hernia, Thermomax subliner. Spine Independent spine with ventilation protection 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 through zip opening. No design template Key upgrades FlexForward kidney hernia, Thermomax subliner Spine Independent spine with ventilation protection 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 through zip opening.