This revolutionary material has the look and feel of leather, yet it is composed of sturdy polyester webbing that is coated in PVC or TPU and requires minimal care. In the worst conditions, it outperforms leather, ordinary nylon, and other material leashes and collars, with a breaking strength of 1000 pounds per square inch. We call it "unicorn leather" because it's a magical substance that's also vegan-friendly. BioThane® is a trusted brand for sports leagues, space and military organisations. It is made in the United States and imported by European retailers. visitors.