Selling because I no longer need it. Brand new, unopened. Retail price: 2530 yen Size: 2S (22.0-23.0 cm) Compatible with 3 sizes. Can be cut to fit. The material is an insole made of "Sorbo-thane," an artificial muscle said to be able to withstand a dropped egg without breaking. It evenly distributes pressure, is soft to the touch, absorbs impact from below, and smooths the movement of the center of gravity when walking. Will be wrapped in a waterproof poly bag and shipped in an envelope. Although it is new and unopened, it has been stored at home, so there may be some folds in the bag. Please understand this before purchasing.