Need another pair of trainers? Get down to Sutton Runner to claim your 20% off as a member of SE Fitness.
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Running in old or worn out shoes may cause injuries. It is recommended that you change your shoes after 300 or 400 miles, depending on your running style and the surface you run on. The midsole usually breaks down before the tread shows major signs of wear. The midsole provides the cushioning and stability.