These shoes were a disappointment. I got them for everyday hiking with my dog and the back velcro comes undone ALL THE TIME. It's great that they're adjustable, but velcro on the back is a terrible idea. I've only had them a few weeks and I wish I could send them back, but they look worn after the first time and I wouldn't have been able to know. Not the shoe I was hoping for at all. I expected better from Merrell. I may try to sew the backs together so they can't come undone, but the leather is thick so I don't know....