Part of the Wolky collection is made with a chrome-free lining. That’s good news, of course, but why? To make leather from an animal skin, the skin must be ‘tanned’. This tanning can be done roughly in two ways: naturally and with the help of chemical substances. The first way is very time-consuming, which is why the second way of tanning is widely used; using chrome. Don't worry: this is not dangerous in small amounts, but if you have a chrome allergy, it might be something you suffer from.