I already had another pair of LifeStride sandals which are very comfortable. These are similar in that they are good for everyday use. That is, getting to and from work and at work if you have a desk job, like I do. They aren't so great if you are on your feet all day, or if you need to do a lot of walking, like from one end of a large hospital complex to the other. The back strap isn't flexible, but the front one (along the top of your foot, near the ankle) is. These shoes are cute and professional.