This is my second pair of Chacos. I also have a pair of Z/1 Yampas. The Yampas are a little too narrow for me to wear comfortably with socks in the winter, so I got these in wide. I thought that the weight of the thicker Unaweep sole would bother me, but after wearing these sandals about half a dozen times, I have to say that they are at least as comfortable as the Yampas. I got my first pair of Chacos to help reduce pain from a case of plantar fasciitis. The plantar fasciitis is long gone, but the Chacos are keepers -- Yampas and Unaweeps.