The Alpinestars Nucleon Flex Pro Shoulder Protector is designed to deliver high-level impact protection with exceptional comfort and freedom of movement. Built using innovative Nucleon Flex Pro technology, this lightweight shoulder protector features a ventilated, open structure that promotes airflow while maintaining a slim, low-profile fit inside compatible garments. 

Its ergonomic, adaptive design allows the protector to mold naturally to the rider’s body, providing extensive coverage without restricting mobility. The discreet profile helps keep the protection unobtrusive when off the bike, while still offering confidence-inspiring performance on the road. Certified to EN 1621-1:2012 Level 2, the Nucleon Flex Pro Shoulder Protector delivers advanced protection in a flexible, rider-focused design.