Since I use glasses the fit is kinda harsh right where the temples rest since they are on-ear but I knew that before buying them so Im ok with it. My size I usually buy is small 5-6 and as they get older they seem to get stretched out and almost too big once the memory foam flattens down and I need to replace them. No rubbing, no break-in necessary, and best of all NO blisters. I strongly suggest at minimum using the sizing tool on the New Balance website. Had I ordered a 10. Good selection of hooks. Pairing is so easy its done before you even realise. I lost levels but gained width. I had to leave the left side not completely tightened and added gorilla glue to make sure it stayed put. I ordered another one.