I have a crush. It's definitely unidirectional. I am infatuated with finding the perfect bag. The Anything Pack, large, is my latest favorite. It's huge! Kitchen sink huge. Pack it with soccer balls to haul to practice. Or, fill it with clothes for a sleep over with strangers. No matter where you are going, the bicycle super trunk goes by the name "Anything Pack". All that space and eventually you might get the bright idea to donate 60+ pounds of cat food to a local cat rescue group. After I filled my Anything Pack to capacity and rode with it 5 miles through city traffic, I finally found the Anything Pack achilles heal. It's still effected by gravity. Thankfully, the professional slackers at Road Runner understood my pain. These detachable waist straps are crucial if you're going to take a great pack well past its limits. These stabilize monstrous loads, easily. I keep them detached, in the front pocket of my large Anything Pack, waiting, quietly, to help me save kittens and my back!