Vibram FiveFingers footwear is 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 of your longest foot and refer to the Vibram FiveFingers men' s or women' s size chart to find your shoe size. Please click for a video about how Vibram shoes should fit. View the Vibram FiveFingers for your shoe size. View the Vibram FiveFingers for your shoe size. The Vibram FiveFingers Vi-B slip-on shoe is featherlight breathable and slim-fitting that makes it ideal for keeping your foot dry and steady during every activity. Fit Tips: 1. Insert foot slipping each toe into the individual toe pockets. It may work best to begin with the big toe. 2. After each toe is in place slip heel in and adjust until it is snuggly in place. Highly breathable polyester mesh upper. Vegan-friendly design. Easy slip-on style. Soft foam insole features antimicrobial Drilex technology to keep feet feeling fresher for longer. 3.5 mm Vibram XS Trek is a technical compound that provides excellent overall performance with superior flexibility and reliable wet traction. The highly responsive design sees you from the trail to the urban playground and even across a range of indoor activities due to its non-marking feature. Machine wash cold air dry. Imported. Measurements: Weight: 2.6 oz Product measurements were taken using size 35 (US Women' s 5.35) width B - Medium.Weight of footwear is based on a single item not a pair.