The Bikila is unparalled in the running shoe market and was Vibram's first model designed specifically for a more natural, healthy, and efficient forefoot strike. The Bikila features a Dri-Lex covered 3mm polyurethane insole (thickest under the ball) and a 4mm anatomical pod outsole design that provides superior plating protection, and distributes forefoot impact without compromising important ground feedback essential to a proper forefoot strike running form. A more athletic padded collar and topline, a single hook-and-loop closure, 3M reflective surfaces, and tear-resistant TPU toe protection tops off this outstanding design. Features: Machine Washable, Air Dry, Designed and Created Exclusively for a Natural Running Experience, The Upper Has a More Athletic Padded Collar and Topline, Has a Single Hook-and-Loop Closure, Has 3M Reflective Surfaces and Tear-Resistant TPU Toe Protection, Popular Uses for the Bikila, Running and Fitness. Warranty: One Year, Waterproof: No, Material: Stretch Polyamide with TPU Toe Caps For Protection, Type: Athletic, Insulated: No, Sole Material: Anatomical Pods TC-1 Rubber, Model Year: 2012, Product ID: 262659