I think if you are camping on relatively flat terrain a sled works better then a back pack.Its hard to hike very far or to work very hard with a pack without working up a sweat which will leave your back soaking wet.This means when you get to the camp site you'll need to change clothes or dry the ones you're wearing.With a sled as long as you don't over excert yourself you can stay nice and dry.Dry means warm.

Hiking up a mt. requires the use of a pack and try as I might I've never been able to do it with out getting sweaty.So I always bring an extra hot chilly top to change into.The wet one can be dried quickly hanging on a branch in the wind.The great thing about poly-pro.