As with all skins, leather will wrinkle and soften with age. Light colors especially need to be kept out of contact from water and other liquids. To maintain the shape of your shoes, you can stuff the shoes with tissue paper when not in use. This will help maintain the supple and smooth nature of the leather.
When not in use, it is important to ensure leather shoes are dry and well ventilated before storing in their care bags.
Always store your products away from light and heat,