Premium knit and sock-like upper Lace up closure Sock-like fit Thermoplastic Polyurethane rubber outsole for performance and flexibility For a better fit we recommend purchasing 1/2 size up The Adidas Yeezy 450 Features A Unique Design Language With An Industry-Leading Technology That Uses Advanced Automated Manufacturing Throughout The Production Process. The One-Piece Premium Knit And Sock-Like Construction Provides An Adaptable Fit With Exceptional Comfort. Meanwhile, A Soft Polyurethane Injected Midsole Compound Offers High-Performance Rebound And Cushioning, Delivering An Innovative, One-Of-A-Kind Aesthetic.