Do not store running shoes in freezing or excessively hot conditions. Heat and direct sunlight can cause the midsole to dry out, shrink, and harden, thereby reducing durability and cushioning performance; therefore, runners are advised not to leave their shoes in the car. Avoid placing boots or other heavy footwear on top of your running shoes; the flexible uppers are easily crushed or abraded, which can significantly compromise their functionality.
After cleaning or if the shoes get wet, remove the insoles and stuff the damp shoes with newspaper to dry them. Wet shoes tend to shrink while air-drying, so the newspaper helps maintain their shape; replace the paper with a fresh sheet after 10 minutes.
Take the time to untie your laces when removing your shoes rather than kicking them off with your feet, and avoid forcing your feet into the shoes when putting them on. Forcing them on puts excessive strain on the shoe, and the heel area can easily be crushed or damaged, compromising the shoe's fit and stability. After a long-distance race, it is best to let your running shoes rest for 48 hours, as the foam material requires time to regain its elasticity.
If you cannot recall the mileage on a specific pair of shoes, write the date you started wearing them on the side of the shoe to estimate the total distance. While the general lifespan of running shoes is around 800 kilometers, the actual limit varies based on training conditions, the runner's height and weight, and the rate of wear; some shoes may need replacing after just 500 kilometers. Never put your shoes in a washing machine or dryer, as the textile fabrics and technical materials cannot withstand the rigors of machine washing and drying. Instead, clean them with baby wipes or use a brush with a little soap to spot-clean any dirt. When cleaning the insoles, use a sponge or a soft-bristled brush; do not use a washing machine or dryer. New shoes offer the best cushioning and are ideal for training runs exceeding 15 km on clear days; semi-worn shoes-having logged over 500 km-have reduced cushioning and are suitable for runs under 10 km; and old shoes with over 800 km of mileage can be used for training on rainy days.