Wore them straight out of the box for a 12 hour shift. First couple hours they felt snug (reason I put somewhat small for the fit)! The heel has good cushion and I had to remind my self to keep my weight shifted back in the heel rather than my toes. They were really comfortable,  bit by the end of my shift my feet were sore. I had compression socks on as well and maybe it's better to wear thicker socks!!! I will try them again!!! I was a little surprised at how sparkly they are but I guess it's ok!