Vibrams FiveFingers Mens KSO EVO Shoes provide the perfect combination of ground feedback and protection, making you feel like youre runing barefoot. Polyester uppers provide stability, while speed lacing systems lock your feet in. 2mm EVA insoles with odor-fighting Dri-Lex sock liners let you feel the terrain, while 3.5mm rubber XS Trek outsoles cushion your feet from impact, deliver durability and encourage good form. Machine washable. Imported. Avg wt: 4.9 oz./pair. Mens European whole sizes: 40-47 medium width. Color: Black. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Size: 41. Color: Black. Gender: Male. Age Group: Adult. Material: Polyester. Type: Shoes.