Using these Keen Brixen II WP Slip-Ons is a breeze. Just slip them on and you're ready to go whether it's for a short errand or a night out. When it comes to care, avoid using harsh chemicals. Instead, use a mild soap and water to clean the surface. Let them air dry naturally. These shoes are built to keep your feet warm in cold temperatures down to -4°F/-20°C, but don't expose them to extreme conditions for extended periods. The Cleansport NXT™ helps control odor, but it's still a good idea to air them out regularly. Also, check the soles periodically for wear and tear, and if you notice significant damage, it might be time to get a new pair.