Using these KIZIK sneakers is super easy. Just step into them, and thanks to the HandsFree Labs® technology, you don't need to bend over or tie laces. They're great for all - day wear and can be taken anywhere. When it comes to maintenance, you can easily remove the insoles and wash them to keep your shoes fresh. The nylon upper is durable, but try to avoid getting them too dirty or wet for long periods. The full - abrasion rubber outsole is tough, but like all shoes, they'll wear out over time with heavy use. Keep them in a cool, dry place when not in use to make them last longer.