The Outer Shell Hip Slinger is their take on a modern hip pack, with a twist - the rolltop expands or contracts as needed, with elastic hooks that cinch down for compression and adjustability. Go from a minimalistic 1.5L for your tools, spares and food, or expand it to 3L for a jacket and spare bottle.
Front and rear zippers access the main compartment and a multitude of interior organizer pockets.
The low-profile waist buckle is offset to minimize interference with other belts/buckles, and locks on both sides for precise and secure adjustments.
Check out the review of the Hip Slinger over at Bikepacking.com :