I love these fitness shoes for walking. They're pretty true to size, but run a little narrow in the toe area. This can be alleviated by wearing a thinner pair of socks. They fit snuggly in a supportive rather than tight way and provide better arch support than some of the other Shape Ups. I wear them walking quite a bit and like the stability and cushioning. If the toe area is too snug, try the sandal version - Skecher's Extreme. They have the same bottoms and cushioning, but the adjustable velcro straps near the toe area provide some flexibility (especially if your feet swell in warm weather). I have these shoes as well as the sandals and recommend them both for avid walkers.