Xero HFS shoes are particularly light, have a flexible sole and are breathable, well suited for sports. The inside of the shoes has a moisture-wicking textile lining and a removable 3.5 mm thick insole. Suitable for medium and wider feet, very well adjustable in height. Upper: breathable textile Insole: 3.5 mm, removable Sole: 2 mm FeelTrue® Sole 2.5 mm midsole 3 mm sole pattern Made in China Vegan Minimalist dimensions for the Xero HFS model EU Size US Size Inside length 41 8 26 42 9 27 43 10 27.7 44 11 28.5 45 12 29 46 13 30.2 47 14 30.7