How you wash and maintain your packing cubes will depend on the ones that you have purchased and the material that your cube set has primarily been constructed from. Most will be fine to machine wash as long as you keep them on a cold temperature wash. Alternatively, you could give them a hand wash again with a mild detergent in lukewarm water or in some instances, just give them a good wipe over with a damp cloth before you re-use them.\r