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. ; Get a little closer to nature the next time you take to the trail in the Vibram FiveFingers. ; Designed for the minimalist trail runner. ; Polyester mesh and textile upper materials. ; Bungee speed lacing system allows for easy on and off, and a snug fit. ; Soft lining offers a great next-to-skin feel. ; 3 mm Polyurethane insole features antimicrobial properties for a fresher in-shoe fee. ; Max Outsole Thickness: 4 mm ; Vibram outsole delivers reliable traction over a variety of surfaces. ; 3D Cocoon technology is molded into the outsole for lightweight protection. ; 360° lug pattern delivers multidirectional grip. ; Imported. Measurements: ; Weight: 7 oz ; Product measurements were taken using size 45 (US Men's 12-12.5), width D - Medium. measurements may vary by size.