New Nike Mens Epic React Flyknit Running Shoe 12 White White Silver Black the sting dampening in the Navy Violet the sting dampening in the Vexxum LINQ hinge system for the best mobility Single top strap remains behind thigh without dropping behind back of the knee Reinforced front double knee protector straps for added durability for indoor workouts Wider and smoother knee for better pivoting and sliding Repositionable center knee pas with D3O padding Diamond vents line the back for even more weight reduction and breathability Stainless steel matte black hardware 16 supportive fit Elastic yarns in the upper create an engineered fit and superior comfort Nike React foam technology provides a soft and responsive ride Foam responds to each step and bounces back to keep it's shape Heel cage and TPU heel clip creates detailing and a secure fit Flyknit upper construction wraps the foot for a secure