The upper is made of breathable cotton fabrics for hygienic and comfortable wear. The flexible sole with a raised heel counter and stable sides keeps the foot in the right position. The bottom of the shoe is breathable. The ballerinas have Velcro, which makes putting them on even easier. The insole is made of fabric. The shoes have the originality mark - a yellow insert in the sole, they are certified and recommended by orthopaedists. For size selection please refer to the size chart.