Bamboo webbing is naturally anti-bacterial and odor resistant, more absorbent and fast drying than other natural fabrics, breathable, and 100% biodegradable! No pesticides, insecticides, or fertilizers are involved, making this the greenest fiber on Earth. Leashes come as 3/4" wide by 5ft for small and medium size collars and 1" wide by 5ft for large collars.