Youth Bionic Rib Support Size:One Size Ultra-thin Formula 1 specification sole

Ultra-thin Formula 1 specification sole uses Alpinestars exclusive rubber compound for pedal sensitivity and grip

EVA insert located in main midsole beneath the heel provides long lasting softness

Capacity: 3600 mAh

but also features a custom Rugged Radios mount designed specifically for your Polaris RZR XP

Compatibility: Fits Pyrotect Helmets (not SA20)

Youth Bionic Rib Support Size:One Size Ultra-thin Formula 1 specification soleA high performance, lightweight, ergonomically constructed guard for the ribs and kidneys, the Bionic Rib Support incorporates intelligent adjustment features to offer kart drivers a supremely comfortable, customized and supporting fit. Construction Technical, multi layered main construction for optimized performance fit, protection and comfort: Comfort: Advanced, soft poly lycra inner lining means protection can be worn under or over garment. Impact