Personally, I'd take one metal and one omatter pair. Depending on where you are staying I just wouldn't trust leaving my metals anywhere I travel. I'd want to take them with me every day when I left. That isn't always practical and obviously depends on your particular situation. One thing's for sure, I'd definitely take a Julie
I'm on vacation at the moment, brought 3 pairs. 2 metals - an X Metal/Ruby R1 and a Plasma/Ice Juliet and then a pair of straight jackets for if I go near the sea or pool. Can't be in the sun without my Metals!
All sorted taking my xx metal as the lens has a chip on and when I return there hopefully going to x man for a tune and reblast (email sent) and X metal ruby!! While I'm here anyone know where I can get hold off black iridium/ or 24k lens for my xx metals!! Missed some on eBay the otherday!!