Inov-8 Men's F-lite 235-m 100% Textile and synthetic mesh Imported Standard Fit Rubber sole The f-lite 235 is the next generation f-lite that is designed to annihilate all woods The f-lite 235 is a zero drop shoe with cushioning and increased flexibility delivered through new multi-directional meta flex technology An even stickier rubber outsole and extended use of rope-Tec onto the shoe's upper makes this the best gripping functional fitness animal in the box A great functional fitness performer