In reply to Smythson:
Would you do the same for anything else around in the valley ? Start off with light trainers and just keep the B3 for higher parts ? Sounds like the best weight options, lightweight nikes wont add much to the duffle bags really, another pair of boot would be heavy, even my light TNF ones would weigh much more and would take up a lot space.
Plus, I'd still have the nikes or something else for travel anyways
Altough few years ago been traveling through Switzerland in B2 boots - B2 I'm fine with basically everywhere, even in town.