NIKE Free Train Versatility Men's Training Shoe Running Sneakers 833258 (11.5 M US, Blue Brey/Black/Hyper Turq/White) Breathable mesh upper Imported Breathable mesh and synthetic skin overlays provide lightweight support Flywire integrated into the lacing helps lock the foot down, Lace-up closure. Removable foam insole. Breathable fabric lining offers a great in-shoe feel. Dual-density Phylon midsole promotes a plush, stable ride. Rubber outsole with hexagonal flex grooves delivers multidirectional traction.