Australian Oilskin Can Cooler. The inside is 100% Australian wool, a natural insulate that has kept sheep warm for thousands of years. The outside made of Australian oilskin which is water repellent and durable. This can cooler fits standard stubbies, cans and long-necked bottles. The back has a leather and metal clip that can be attached to just about anything – like bags, belts or bikes – or you can just use it like a handle.