I received my first barefoot shoe, Merrell's yesterday. I wore them for a few hours yesterday and today all day. It took a whole day of wearing them to realize the laces are stretchable and that I can open them all the way up and I'm good They are my only pair of shoes. I've tried NB Trail runners and they killed my feet. I am ordering another pair of these now. I have average feet but realized since I do wear just  and wear a size 8 but got an 8 1/2 because of reviews and they fit perfect. I can't wear heel because of my back so there was no break in time for my calves needed.