ALPINESTARS Nucleon Flex Proi Full Back Protection Insert - Transparent Smoke/Red - Small 6526323-003-S Youth GP Plus 1-Piece Leather Suit Internal 3D lining includes anti-slide

Internal 3D lining includes anti-slide microfiber suede on the heel to help keep foot in position

choose the applicable 2- or 4-stroke throttle cam

This item is included with all 2016-2019 ZX-10R tuning kits

Cast stainless steel construction

Wide entry aperture for convenience with Velcro® upper closure flap to allow broad ranging calf fit adjustment

ALPINESTARS Nucleon Flex Proi Full Back Protection Insert - Transparent Smoke/Red - Small 6526323-003-S Youth GP Plus 1-Piece Leather Suit Internal 3D lining includes anti-slideHybrid technology Alpinestars' Nucleon Cell and Flex technologies providing ventilation and flexibility Ergonomically contoured dual zone outer shell Advanced polymeric blend with a solid cell structure core framed by a more flexible 3D cell structure Nucleon Flex technology layer on the central back zone More protection coverage in critical area Lightweight, ventilated and ultra comfortable technology Rigorously tested and certified for proven