Leguano Lady Cherry ballerinas are extremely light, flexible and breathable. They give a wonderful feeling of bare feet. Upper material: 100% polyester Insole: 66% Polyamide, 29% Polyurethane, 5% Polyester Sole: 100% LIFOLIT® The Lady Cherry model is machine washable with a gentle program at 30 degrees. We recommend putting your shoes in a laundry bag, using a gentle detergent, not using fabric softener or washing powder. Minimalist measurements for the Lady cherry model Size Stm 36 22,5 37 23,3 38 24,3 39 24,8 40 25,4 41 25,8 42 26,8 43 27,5