Do you have trouble wearing sandals due to moisture or discomfort? Then these adhesive insoles are for you. They are made in Korea from high-quality material that conforms to your feet while providing comfort. The fibers on the surface are pretty absorbent and provide an added layer of protection to keep your feet in your shoes where they should be. For those with hyperhidrosis, these liners help stop sweaty feet from severely limiting your summer footwear options while promoting a healthy foot environment. Narrow yet not too narrow, they are perfect for sandals, pumps, mules, flats, spongy flip-flops, or fabric-bottomed styles. They come in a wide variety of sizes so that you can find the size that is right for you. Unlike others on the market, the strong adhesive ensures that they will stay in place without creasing or bunching up. Minor trimming may be necessary and needs to be done prior to removing the backing and applying them to shoes.