These shoes are fairly light weight, and very waterproof. I took them with me to Mt. Kilimanjaro, with barely breaking them in and had no blisters or difficulty. The only problem I had was with the downhill, there was a little room in the right boot for my toe to bang against the boot, resulting in a black toenail (which might fall off). This happens though, it was a 70km trek and these boots held up perfectly!