I used to run a Dakine Nomad pack and when it came time to retire it, purchased an Osprey Raptor. I have been less than happy with the fit of the Osprey as I have to cinch it down stupid tight to keep it from bouncing around while going downhill on my bike. I know that a lot of people will choose to go without a pack but I am of the camp that think they are essential for enjoying myself on all day lift access excursions. Everything from the water, to the tools and tubes and food it can haul makes it worth the inconvenience of wearing one. Just to include all the details, I am 6'2" and weigh 185. Standard body shape, in my opinion.