BIRKENSTOCK Madrid Sandals 24cm Birkenstock - Brand: BIRKENSTOCK - Size: 37 (24cm) - Color: Pink系 (Pink-ish) - Material: Cork sole The cork sole feels a bit stiff. I haven't worn other Birkenstocks, so I can't compare, but I'm selling these at a bargain price. Purchased 2-3 years ago. They were too small for me, so I haven't worn them much. There is no wear on the heels. Please check the images. I listed the color as pink-ish, but they may appear pink or brown depending on the lighting. Please understand that these are used items before purchasing.