Has anyone purchased the Merrells for their kids? I would love to have some feedback about them. If I am going to pay $60, I want to know that they are durable. We have been dissappointed with the quality we are seeing in kids minimalist footwear and would love to see a shoes that will hold up to their activity. Merrell has a history of great quality, but I was wondering if that same quality is seen in their children's "barefoot" shoes. Thanks.