the advertising for these sneakers say they're like being barefoot, and its not far from the truth. quite light in weight, these are great shoes for just walking around.  if u have a high instep or a wide foot, forget these. my feet are quite long and narrow, and i suppose i have a normal instep, and these sneakers are a snug fit. so snug in fact, i cant wear sox with them, but im ok with that as they are really really comfortable. im a 9, i purchased a 9 - no problems.