You should impregnate new shoes before you wear them for the first time, and later regularly two to three times a month. This is particularly important in winter because it makes the shoes waterproof and helps against salt stains. If you don't wear leather shoes every day, you should always store them with shoe trees, which are best made of wood. In this way, wrinkles and kinks can be avoided and the leather stays beautiful for longer. Shoe bags made of cotton or flannel offer additional protection for longer storage or transport.