I always wear Sketchers. When ShapeUps first came out I bought a pair and wore them for my nursing school. They are great. I bought this pair during a great sale at Christmas time and when I started working 12 hour shifts I would always take 2 different pair of shoes (like I read somewhere to do). I didn't need the other pair. These shoes are great for walking in for 12 straight hours on hard concrete floors.  I have plantar fasciitis in my left foot and heel spurs, neither were exacerbated by wearing these shoes. In fact, since I've been wearing these I have absolutely have NO foot pain what so ever. Much love to the makers. I did roll my ankle wearing the older pair but that was my fault for stepping on a fallen walnut. I do not blame the company for me not looking where I was stepping. I didn't have a problem at all with the size. I wear a 10 and I purchased a 10 without any problems they fit perfectly.