A few maintenance tips to keep it in good shape. You can nourish the leather with a nourishing cream every two or three months so that it retains its suppleness and all its properties. Apply the cream with a soft cloth and rub gently. If your lace-up leather case is exposed to water, wipe it with a dry cloth and leave it to dry in a dark, airy place so that the leather dries thoroughly. If there are any small marks or stains, rub them lightly with your finger or with a moisturizer without pressing too hard.