These new sandals/thongs look like the ‘go’ for folks wishing to have a spare pair of ‘shoes’ around camp, for river crossings or in case their hiking shoes die etc. Definitely on MY birthday list. At 4.2 oz each (120g) they are a little heavier than my home-made pair I posted about on 20/12/2012 which weighed 58 grams the pair, but may prove more robust being Vibram soles etc. I notice they also have special (http://bedrocksandals.com/ninja-socks/) socks to wear with them. Neat: http://bedrocksandals.com/earthquake-sandals-v2/https://bedrocksandals.com/collections/sandals/products/earthquake-sandals?variant=21423629702
These guys make a very similar range of lightweight sandals but I can’t find the Specs on how much they weigh: https://xeroshoes.com/