ALPINESTARS Nucleon Flex Proi Full Back Protection Insert - Transparent Smoke/Red - Medium 6526323-003-M lbz Impact-absorbing Ethylene-Vinyl Acetate (EVA) foam

Impact-absorbing Ethylene-Vinyl Acetate (EVA) foam panels on thumb

Synthetic leather palm with padded palm reinforcement

Easy to slip-on design with large toe box that allows the toes to spread when kneeling for superior levels of comfort

Ultra-wide 48 mm strap with thick silicone beads for maximum helmet grip

The shield lens seamlessly integrates into a lightweight frame

ALPINESTARS Nucleon Flex Proi Full Back Protection Insert - Transparent Smoke/Red - Medium 6526323-003-M lbz Impact-absorbing Ethylene-Vinyl Acetate (EVA) foamHybrid 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