I bought a pair of these for my husband and myself last year in a local drug store. Unfortunately they didn't carry kids size at the time. We took ours on a trip to Mexico and they were awesome! They take up no space in your suitcase, and weigh nothing, which is fantastic considering all the baggage restrictions on airlines!
We wore these shoes on a forced march up a mountain and down the other side to get to a beach thats been closed off by a condo development. They cant deny people access to the public beach, but only provide a treacherous path to get there. These shoes were up to the task, and were super comfortable. I immediately searched for kid sizes on Amazon when w returned. Now our whole family is ready for our next adventure!