Wolky strives to produce environmental friendly footwear with its Whiteline® leather (Used in the new Font group). Tested by the renowned German Testing Institute called TÜV, Wolky’s Whiteline® leather passes the strictest environmental regulations and is FOC (Free of Chrome). This means no chrome has been added during the tanning process so that anyone with allergies or sensitivity to the chemicals in dyed leathers can wear this collection without a doubt. We wish you lots of joy with your new Wolkys.