How to use: You can wear these OOFOS women's sport shoes right out of the box. They're suitable for post - workout recovery walks or just casual daily activities. Note: Although they're quite durable, try not to expose them to extremely harsh environments for long periods. Maintenance: Since the closed - cell foam is machine - washable, you can toss them in the washing machine on a gentle cycle to keep them clean and odor - free. But make sure to air - dry them to avoid any damage to the material.