These Reebok cross - trainers are easy to use. Just lace them up and you're ready for your training session. When using them, avoid wearing them in extremely harsh chemical environments for long periods, even though they have good chemical resistance. For maintenance, use a soft brush to clean the leather upper regularly to keep it looking good. You can also remove the insole and wash it gently with mild soap and water to maintain freshness. Let the shoes air - dry naturally, and don't put them in a dryer. And make sure to check the laces periodically and replace them if they're worn out.