FiveFingers are designed around the foot's measurement in inches. There is no real 100% translation between your US size and FiveFingers size. In order to find the right size, please measure both feet from heel to tip of longest toe with a ruler in inches. Take the longest measurement for your longest foot and refer to our . Please click for a video about how Vibram shoes should fit. Perfect your form in the groundbreaking Bikila. Vibram FiveFingers barefoot-style running shoe. The Bikila is designed to promote a more natural and efficient forefoot strike; it is the first barefoot model created exclusively for a more natural running experience. Stretch polyamide upper with TPU toe caps for protection. Padded collar and topline for added comfort. 3M reflective surfaces for increased visibility. Hook and loop strap closure. 3mm polyurethane footbed with Dri-Lex Sockliner for moisture management offers plating protection and reduced packing over time. EVA arch contours the foot to reduce weight. 4mm anatomical pod outsole constructed from TC-1 Rubber distributes forefoot impact while providing ground feedback essential to proper forefoot strike form. Machine wash, air dry. Imported. Measurements: ; Weight: 6 oz ; Product measurements were taken using size 41 (US Men's 10), width D - Medium. Please note that measurements may vary by size.