Look for Leather Standards by Oeko-tex, or brands that obtain leather form Leather Working Group (LWG). There is also recycled leather brands such as embrace™, or Recyc Leather ™.
Did you know?
We wear as much as 4 items of leather everyday? Think of belts, wallets, shoes or wristband on your watch or a necklace. The matter of fact is that if the natural leather was not used, you will most likely be wearing synthetic alternatives.