Timbuk2 Basketcase $88.95
You can also carry it on your head.
Built to fit perfectly into your handlebar basket, the Timbuk2 Basket Case comes with more ways to carry your stuff than any bag we've ever seen. You can sling it over your shoulder, carry it with the two separate carry handle, or drop it into your basket and ride off into the sunset. What's next? Wheels?
The Basketcase is made with durable tarpaulin and weighs just 1lb, 10oz. It measures 15.6x14.8x26.5x10.6 inches—what Timbuk2 refers to as a mid-volume bag. Its durable, waterproof fabric renders the Basketcase weather- and road-grime-proof.
The shoulder strap is fully adjustable and uses Timbuk2's exclusive Memory Adjust Cam Buckle. To adjust the strap length, you just flip open the lever on the buckle, slide it to the length you want, and close the lever. The Basketcase also has front pockets to help keep your life in order and a front flap specifically designed to hold a U-lock.
The Timbuk2 Basketcase comes in one size and is available Gunmetal and Black/black.