We have a lot of guys wanting to maximize the utility of Mystery Ranch's smaller Guide Light Frame packs, and this is the easy solution to do just that. The 40L provides 2441 c.i. of additional, waterproof storage. If you're wanting to run a Pintler to haul a gear cache while scouting, here you go.
Built from 210 D TPU coated ripstop nylon with a roll-top buckle closure to keep contents dry in the dankest conditions.
210D TPU coated ripstop for lightweight, waterproof performance
RF welded, fully waterproof roll top design
Fits outside on Overload Shelf™ or inside larger packs
Shaped to direct load/weight to center for more stable carry
D-ring built into roll top buckle for hanging convenience