HI-FIBER High Strength Fiber UpperCrafted with HIRACER Hi-Thread Upper, boasting a density lower than human hair strands. Its specialized weaving creates breathable micro-perforations for enhanced ventilation, toughness and durability. The built-in supportive reinforcement structure ensures seamless fit, delivering a technologically advanced, ultra-breathable shoe upper.Carbon Plus Multilayer Hard Arched Accelerated Carbon Fiber BoardCarbon fiber materials are scientifically arranged full-length to meet the demands of sprinting and explosive push-off. The arch-shaped carbon fiber structure in the forefoot delivers powerful push-off rebound and propulsion for maximum sprint performance.HIFoam Max Double Layer Board Foaming MidsoleCrafted with an advanced HI-performance sheet molding process, it cuts midsole weight significantly while delivering exceptional cushioning and rebound. Boosting energy return efficiency for ultra-responsive bounce, it pairs a forefoot arch-shaped carbon plate with a full-coverage carbon fiber outsole to provide explosive power for sprint acceleration and dashes.Bio-Based Carbon-Blended OutsoleCrafted from Arkema’s French bio-based carbon-blended material with professional tuning. Compared to nylon outsoles, it delivers lighter weight, higher rigidity, and faster deformation rebound. The full-length reinforced rib structure further boosts rigidity and torsional resistance, providing robust support and propulsion to dominate sprint dashes. Boasting a scientific 6-spike layout paired with triangular pillars, it enhances traction and stability, enabling athletes to power through the finish line in sprints.