These insoles are popular among our customers. After experiencing the warmth and comfort of sheepskin footwear, they want to experience that all of the time. Formal dress shoes magically become more enjoyable because hidden on the bottoms are a pair of our insoles. They come in a pair. Try them, everybody raves about them. These insoles only weigh a few ounces so when ordered by themselves, as in not with a pair of shoes, we ship them USPS First Class mail.