Excellent point ST. That is something I had always considered before but neglected on this occasion instead focusing on comfy dry feet. My camp shoes are carried on the exterior of my pack and therefore are subject to the elements.

My current camp sandals are secured using velcro at the heel instead of the slip on variety just for the dual usage of being a possible portage shoe in the worst case scenario. My only compliant is they are often damp and that sort of sucketh. 

Not sure about the Glaglas as a portage shoe. Maybe I should of asked the guy if he would let me try them on  ;)