Our 'Pony Hair' leather collars are made with 100% genuine hair-on-leather. With regular wear the leather will soften due to the oil on your furry friend's neck. To increase the longevity of your 'Pony Hair' collar, store in a dust bag protected from direct sunlight. If your collar becomes dirty clean with a damp cloth, always working in the direction of the grain, do not brush the hair back and forth. Dry immediately.