- Upper: Microfiber upper with thermoformed tongue and flex-back hinge — delivers structure, comfort, and an anatomical fit- Protection: Shin plate and calf guard with anti-slip, heat-resistant insert — shields key zones from impact and heat- Fit System: Asymmetric Flexion System with replaceable polymer buckles — ensures a secure, flexible fit with lasting adjustability- Outsole: Advanced compound sole — engineered for grip and durability across varied terrain