The FuelCell foam is designed to provide a propulsive sensation, boosting your forward momentum. The upper section incorporates no-sew construction, offering a streamlined fit and comfortable feel. Made from a combination of synthetic and mesh materials, it offers durability and breathability. With a 6mm drop, please note that slight deviations may occur due to the intricacies involved in the production process. Additionally, the shoe includes a TPU plate that enhances traction and provides superior propulsion.