
Check out Bikepacking.com's 2025 Gear of The Year Awards, featuring OMM's FLiP Cage
Quick Mount and Reliable!
Old Man Mountain has spent years developing a reliable and robust quick detach mount that can withstand riding in the toughest conditions. FLIP is easy to use in the cold, in the mud, with gloves, in the sandy desert.

What Makes The Hemlock So Special?
- 100% Waterproof: Made from TPU fabric with Hypalon reinforcements, fully welded seams, and a roll top enclosure. You can be fully confident that your gear will remain dry and protected, even if you don’t quite make that stream crossing.
- 5 or 7 Litre Capacity: 5L is perfect for a sleeping bag, sleeping pad, or cook kit with a little space to spare. 7L strikes the perfect balance for a bag remaining compact but providing usable space. Both bags capacities are measured while still rolling the closure three times.
- Quick Mount: No more struggling with straps and crushing your stuff. Simply hook the bottom of the bag and rotate the handle 90 degrees to lock the Hemlock bag in place, securely and silently!
- All Terrain Ready: FLiP Cages and Hemlock bags are built for whatever riding you want to take on. Whether rowdy shredpacking or traversing around the world, they are ready for anything.
- Dual Use Cargo Mounts: FLiP Cages are the first quick detach mounts that are also cargo cages with optional cargo feet. Need to carry a more water on your trip? No need to swap mounts, just strap the Nalgene on and go!
- Silence Is Precious: We head out into wilderness to escape noise. We made sure that Hemlock and FLiP Cages are silent, secure, and strong. No more rattling, and clanging bags.
Specs
- 5/7 Litre capacity per bag
- Fully welded and waterproof construction made from TPU fabric
- HypalonⓇ reinforcements are more abrasion resistant and provide structure to the bags
- PFAS/PFC free materials
- Roll top enclosure is easy and reliable
- Minimal branding
- Lightweight
- 5L: 330g; 7L:348g (per bag), 94g (per FLiP Cage)
- FLiP Cage weight: 94g (each), 140g with optional foot.
Installation