Nike Men's Free Trainer 5.0 v6 White / Black / Cool Grey Mesh Cross-Trainers Shoes 11.5 D(M) US Synthetic Imported synthetic-and-mesh Flywire technology wraps the foot and locks it in place for support during dynamic lateral movements Low-profile Phylite midsole is durable enough to double as an outsole Minimal, molded sockliner mimics the curvature of the foot for enhanced support Anatomical heel is rounded to roll with the ground