The Orca Walker 20 is great for a trip to the river, a camping excursion, or just carrying groceries that need to stay cool—it's the size I need when I've been asked to "pick up some cold ones." It'll hold 20 cans or 20 pounds of ice. What I love is that it offers three ways of toting: a magnetized handle, padded shoulder strap, and handholds on both ends. There are oodles of places to attach keys and carabiners, and even a nifty pocket for the cell phone you just couldn't leave at home. Stuff a hat or a wet swimsuit inside the elastic bungee carrying system.
Available online; $219.