Twin Six has just released their T6 Back Sack, a collaboration with Banjo Brothers. It’s made of heavy waterproof tarp fabric over a water proof liner. The exterior is flat black and gray with reflective appliqués and two blinky light loops on the bottom. Five pockets are covered by the top flap, which lays over the roll top opening.
Shoulder straps are padded and the open side pockets fit a small U-lock. Measures 18″T x 11.5″W x 8″D and retails for $95.