Well I gave it a shot. Having some extra time in SLC last night before our flight, I slipped into a pair of thin cotton joggers I found on clearance that day, and a light t shirt. When connecting in ATL (and the ensuing 9 hour delay due to wether) I had plenty of time to change into a pair of Bermuda shorts for when we eventually ended up in SJU. Though it was a bit awkward trying to change in the restroom at each airport, these were some of the most comfortable flights I've had, and all it required was a little bit of time.