Michael Good thing we had our newly acquired portable deck chairs in the trunk! I had bought the two foldable gizmos with integrated sunshades a few weeks ago at the mountaineering outfitter REI in San Francisco. The product is absolutely amazing. You can easily strap two of them onto your back, and the two sunshades can be folded into disc-shaped structures with a radius of about 50 cm. Each chair weighs about 4 kg and comfortably accommodates an adult.
You lie in it completely relaxed, extremely comfortable, and back-friendly, with your head resting on an integrated pillow. I have actually fallen asleep in it!