These are a super light, mostly comfortable and super flexy boot. I spend 6 hours plus a day in these 5 or 6 days a week and I'm very happy with the performance. The down side to them comes from a lack of support in the boot so they have tended to crush in. It doesn't affect the feel from the inside but I am always having to adjust my binding straps to make them shorter as they crush in the boots from the outside. Also because the outside footprint of the boot is so small it may affect the size of the bindings you need. I'm in a 9 and I'm at the smallest size you can fit in a medium binding (Burton or Union). On the whole I love these boots but be warned if you ride 100 days a year you may need a couple of pairs a season!