I ordered some extra Dynabands to have on hand just in case the one I got from Cathe ever breaks, and the instruction manual they came with said that because it's a Silicon product after you use it you should sprinkle it with baby powder and keep it stored in a plastic bag. This will keep it from drying out. However, because I'm a neat freak and the thought of getting baby powder all over my workout clothes, and on my step and floor, doesn't appeal to me I'm going to forgo this little step and see how long it lasts. I'll let you know in a few months if I should have followed that advice!:7