To increase the durability and ensure high quality of the leather, we recommend that you treat the leather with leather conditioner, every now and then. The mask can be treated with leather wax, to increase the water repellent properties.
Washing the tube
The leather neck tube should not be machine washed. If the outside of the neck tube gets dirty, wash it off with a moist cloth and then treat it with leather conditioning. If the mask needs a more thorough washing, hand it to a professional dry cleaner, who have experience with leather products.