I have a narrow midfoot and these fit like a glove. There is enough room for me to work on splaying and is like wearing a protective sock allowing a lot of movement and feeling throughout the foot. I have already noticed a change in my walking pattern due to the minimal sole. These are great for the cold windy weather thus far. Personally, I do not use these for icey ground as they dont have lugs for needed traction. However, light fluffy snow was fine while walking my pups. The wool has kept my feet warm without the use of socks (17 degrees tested).I would highly recommend getting elastic laces to make it easier to put on and take off. As for measuring my feet, I used paper and measuring tape method wothout issue. Thank you Wildling for making an amazing boot. I can't wait to fully transition to all barefoot shoes!