I walk for exercise 4-5 times a week and this is my shoe of choice.  I keep re-buying Punter because it is comfortable, fits well and wears well.  I wear an 8-81/2 in most shoes but always buy a 9 in athletic shoes and these are no different.  I can use a thick sock and still have room in the toe box for my foot to expand during warmer weather.  I never have to break them in--they're good for a long, fast walk right out of the box.