Crafted in a combination of materials including leather trims these running-style BOSS Menswear trainers strike a distinctive profile. Lightweight ridged outsole. Knitted uppers for enhanced comfort and fit. This product contains at least 60% better raw materials. This product is partly created with recycled polyester. We at HUGO BOSS prefer recycled polyester from pre- and post-consumer textile waste and do our best to phase out polyester from PET bottles..