Fila - Racer 6 (Fila Navy/Regatta-White) - Men's: Seamless upper combines breathable air mesh and synthetic suede to give the shoe the maximum breathability, lightness, and comfort. HF welding adds foot stability. Reinforced toe box. A world class performance racing flat with SPEED TECH technology for responsiveness and elasticity. New High Performance Fila 3000 EVA. Evergrind rubber in the rearfoot for abrasion resistance and durability. Blow rubber in the forefoot for cushioning and lightness. Small external shank provides stability. Flexible grooves across the forefoot of the outsole allows easier foot flex and a more natural roll.