the Nucleon Flex family of protectors is ergonomically engineered for comfort

comfortable fit and feel when riding

Designed for urban riding and commuting

incorporating new mesh materials for improved stretch and breathability as well as a revised shape for excellent freedom of movement

mountain biking or karting

nucleon kr 3 back protector smoke black red Size:S the Nucleon Flex family ofThe Nucleon range of road protection features a superb anatomical fit and comfort. Constructed with innovative protector plates which are lightweight and feature a high performance polymeric blend for protection. Featuring new, modular rib protectors for strategic protection in a vulnerable area, the Nucleon KR 3 Protector offers excellent performance under an outer leather or textile garment.