This beach chair, including a footrest, easily folds into a backpack. The large pouch on the chairback has lots of room for your towel and stuff, or can be packed with ice to use as a cooler (the fabric is mesh, so it drains. awesome.)

Seriously, every time I'm at the beach, someone asks me where I got my awesome chair.

Oh, and did I mention it reclines almost flat AND has a beverage holder on the armrest?