5 has enough room for my toes and isnt tight on my foot. Although I may remove them come winter. Came a day early, very excited and happy with this purchase. Initially I thought they were worth having, but after considering how useful they truly are I decided to return them. We had to carry it up 2 flights of stairs. I have waited a few months before leaving a review. There is one significant difference however, the Sony?s feature a multi-function button that is pretty tall, which makes it easy to accidentally skip or rewind your music instead of pausing. Very happy with the quality of recording that Ive been able to get from this mic when paired with my H6 field recorder. Cheap shoes so don?t even bother. Looking forward to using more and seeing results!