Waterproof engineered mesh upper with everstretch collar construction is made of 20% recycled materials. Softfoam is a dual density insole that provides two unique layers of cushioning for customized comfort, fit, and long-lasting durability. Fusionfoam is a mix of super soft EVA foam and ultra-responsive rubber that provides unrivaled energy return and cushioning to keep you comfortable all day long. Lightweight rubber outsole with dual zone spikeless traction.