Using these knee guards is a breeze. Just slip them on your knees. The silicone grip panels will hold them in place, so there's no need to worry about them slipping down even without the thigh strap. When it comes to maintenance, you can gently hand - wash them with mild soap and water. Let them air - dry. Don't use harsh chemicals or put them in the dryer. Before each use, check for any signs of damage. If you notice any tears or issues with the impact gel, it's time to replace them. And always remember, these knee guards are designed for impact protection, so use them whenever you need that extra safety.