Using these Ergon Solestar IP3 insoles is easy. Just take out the existing insoles from your cycling shoes and place these new ones in. Make sure they fit well and are centered. When using, you'll notice improved comfort and power right away. As for maintenance, it's a good idea to take the insoles out of your shoes after each ride to let them dry if they get sweaty. You can clean them with a mild soap and water, then let them air - dry completely. Avoid using harsh chemicals or putting them in the dryer. And always check the insoles regularly for any signs of wear and tear. If they start to lose their shape or support, it might be time to replace them.