I'm a male in my 60's who wanted a shoe for my light training regimen. I don't put a lot of pressure on my shoes, I only use them for running/walking. They are lightweight and have a springy feel. I didn't need any break-in period, I just put them on and left. Perhaps more expensive shoes would have lasted longer or offered better performance to more elite athletes. However, for a person in late infancy, they work perfectly.