This version of the Boston clog, a classic BIRKENSTOCK model, is made of extra soft and smooth suede. The clog can be adapted to all feet thanks to the integrated strap and a sturdy metal buckle. The original BIRKENSTOCK soft footbed takes the comfort factor even higher. Original BIRKENSTOCK soft footbed; anatomically shaped Upper: suede Footbed lining: suede Sole: EVA Details: individually adjustable metal pin buckle “Made in Germany” Special feature: Soft footbed The soft footbed has an integrated latex foam cushion. So it offers excellent comfort from day one. Upper: Suede leather Insole: Suede The flexible leather lining, which is gentle on the skin, nestles up softly against your foot and adjusts to its contour. The open-pored and thus very breathable surface makes for a comfortable foot climate, even during more strenuous physical activity. Footbed material: Cork Cork is a sustainable material extracted from the bark layer of the cork oak. This natural product is insulating and offers very good cushioning. Outsole: EVA EVA (ethylene vinyl acetate) is a high-quality, very light, elastic material with extremely good cushioning. As a result, it smooths out slight irregularities in the floor and ensures that every step is softly cushioned. Style Number: 660473 /  660471 WOMEN SIZES EU US UK mm 35 4-4.5 2,5 225 36 5-5.5 3,5 230 37 6-6.5 4,5 240 38 7-7.5 5 245 39 8-8.5 5,5 250 40 9-9.5 7 260 41 10-10.5 7,5 265 42 11-11.5 8 270 43 12-12.5 9 280 MEN SIZES EU US UK mm 39 6-6.5 5,5 250 40 7-7.5 7 260 41 8-8.5 7,5 265 42 9-9.5 8 270 43 10-10.5 9 280 44 11-11.5 9,5 285 45 12-12.5 10,5 290 46 13-13.5 11,5 300 47 14-14.5 12 305 48 15-15.5 13 310 49 16-16.5 14 320 50 17-17.5 14,5 325