To use these sandals, simply zip them up using the back zip closure. They fit true to size, so you don't have to worry about sizing issues. When walking, the 5-inch heel and 1-inch platform will give you some extra height. Be careful when walking on uneven surfaces as the heels can make you a bit less stable. To maintain them, keep them away from water and clean them gently with a soft cloth. Store them in a cool, dry place when not in use.