Through the replacement of non-sustainable chemicals by sustainable products, and through the adjustment of formulas, Puro is a completely organic leather suitable for many purposes. The leather is biodegradable during the waste phase and can serve as a raw material once again. Leather in general is often automatically considered as a sustainable and natural product. It also often has a natural character and lasts for years. Leather is simply cured animal skin, for which formulas and processes have been developed so successfully over thousands of years that leather can be stored in the ground, for example, for hundreds of years. Under composting situations, Puro however breaks down within a foreseeable period of time. This makes the leather product an important contribution to sustainability.