When to Replace Your Exercise Essentials

Sneakers

When to replace them: After 300-500 miles of use

Must-know info: Worn-down sneakers can result in a lack of support and injuries. If you're doing group exercise classes at least three times a week, figure that you'll probably need to replace your shoes every 9-12 months; if you're running five miles three times a week, every 5-8 months is recommended.

Find the best shoes for your workout