A zero gravity chair folds down small and light, but the same spring tension that gives it its recline can pop the frame back open mid-carry if you skip the strap.
Pro tip: A single ratchet strap around the folded frame does the job faster than multiple zip ties and is reusable for the next move.
Watch out: A folded zero gravity chair that is not strapped can spring open under its own recline tension during transport, unfolding onto whatever is next to it.