Measure your foot at your local New Balance store to find the correct shoe size for your foot. Before you put your shoes on, make sure you tighten the bottom of the laces. Wait a while to break in your shoes. I've been using New Balance for 9 years now. I don't recommend this shoe if you run on concrete as it's quite bulky even if the sizing and fit is right. The shoes are suitable for jogging (but not for running). . It is great for hiking as the voluminous bottom provides extra comfort when walking over uneven rocks.