For years, I have bought sneakers looking for comfort. It has proven extremely elusive and frustrating. The outer soles are never flexible enough and cause foot fatigue and pain after a full day. Finally, last year I came across the Puma Whirlwind Classic. OMG. I have finally have found my sneaker. It's the most comfortable pair of sneakers I've ever owned. So much so, I have now 3 pairs in different colors. I find myself, telling people about them and now, I'm a huge Puma fan. The sole is very flexible and extremely light. It's also very breathable. Insoles are well cushion and absorb shock very well. However, it does not provide great ankle support so there are definitely not made for running. But you can walk on them all day. I highly recommend them, especially if you have flat feet like me.