Vibram FiveFingers Womens KMD Sport LS Mesh^Polyester 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 women's size chart or men's size chart . Please click here for a video about how Vibram shoes should fit. Take on the adventure with full-force in the KMD Sport LS from Vibram FiveFingers&reg;. Built specifically to promote a barefoot-like experience. Ideal for running, hiking, watersports, and casual wear. Thin, abrasion-resistant stretch polyester and breathable mesh upper materials. Upper envelopes the foot to help keep debris out. Speed lace system allows for quick-and-easy adjustments, and accommodates a wider foot or higher instep. Microfiber footbed with Dri-Lex&reg; antimicrobial technology for a great in-shoe environment. 2 mm midsole provides plating protection to prevent stone bruising. 4 mm Vibram&reg; TC-1 Performance rubber prov