I used these for ballet instruction for about six months. There is some fraying on the toes of both shoes (see photo 6). I'm sending them as is, as washing them might cause them to shrink. Size 8M My usual shoe size is 24.5 cm. Quoted from the purchase site below: For instructors, those who dance jazz, those looking for character shoes, those aiming to be theme park dancers, etc., please give them a try! They are compact and very light, so they are also useful as in-flight shoes! They are also recommended for indoor wear! The ergonomically designed CURVE is flexible, strong, and also has antibacterial properties. The dance base support (patent pending) built into the arch of the foot guides you to the correct foot position, absorbs shock, and strengthens the foot, and many people say that they are comfortable to wear for long periods of time. * Immediate purchase is OK. * Returns and exchanges are not accepted. * Please refrain from purchasing if you are concerned about minor details.