Vibram FiveFingers footwear is designed around the foots measurement in inches. There is no real 100 percent 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 mens or womens 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 V-Aqua water shoe has the perfect construction for natural movement in and out of the water and across various terrain. Best uses: wet rock trekking, canoeing, kayaking, river expeditions, tubing, SUP. Textile and synthetic upper provides a snug yet flexible with a lightweight design. Vegan-friendly construction. Hook-and-loop closures on vamp and heel. Heel loop for easy entry. Soft textile lining offers a great next-to-skin feel. Lightly padded 2 mm EVA insole with silicone treatment for long-lasting comfort. 3.7 mm Vibram Megagrip outsole delivers superior traction and grip over both dry and wet surfaces. Machine wash cold, air dry. Imported. Measurements: Weight: 6 oz Product measurements were taken using size 46 (US Mens 11.5-12), width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.