“Frameless” sounds like it means no structure at all, carry everything on your shoulders and hope for the best. That’s not quite right. Frameless describes what’s missing, a dedicated internal frame, not what’s left once it’s gone, and there’s more than one way to build a pack in that space.
What a frame actually does
A traditional internal frame, usually an aluminium stay or framesheet, gives a pack a defined shape and a clear path for load to travel from your shoulders down to your hipbelt. It’s genuinely effective at high loads, which is why traditional frame packs sit heavier, typically 1.2 to 2.5kg for a 40-litre pack, and why they remain the standard choice for heavy, sustained carrying.
What frameless actually removes, and what it doesn’t have to
A fully frameless pack in the traditional ultralight sense removes the dedicated frame entirely and relies on how you pack your gear to give the bag its shape and rigidity. Done well, that’s extremely light, often 300 to 700g for a 35 to 40-litre pack, but it puts the burden of load transfer on your packing technique rather than the
pack’s own construction. Pack it badly and it carries badly. There’s a middle category too, the hybrid roll-top mountain pack, which keeps some structure, often a removable stay or framesheet, at a moderate weight cost, typically 600g to 1,000g.
Where our next version sits, and how
The version of our pack currently heading to manufacturers is frameless in the category sense, no dedicated internal frame, but it’s built with a bonded foam rigid back panel and a rigid plastic spine to transfer load down to the hipbelt. That’s the part a fully frameless design normally asks your packing skill to do instead. The goal is a defined load path without carrying the weight of a traditional frame system.
Why this isn’t just splitting the difference
This isn’t about landing in the middle of the spectrum to please everyone. It’s a specific choice: keep the thing a frame is actually good at, moving weight off your shoulders predictably, without keeping the thing that makes a frame heavy, the structural material built to handle loads well beyond what a 40-litre mountain pack typically carries.
Where frameless, in any form, genuinely falls short
Very heavy or awkward loads, well beyond what a 40-litre pack is built for, still want a real frame. We’re not claiming our construction replaces that. It’s built for the loads our pack is actually meant to carry, not for carrying far more than that.
Where we land on it
“Frameless” isn’t one answer, it’s a design space with real choices inside it. Where you land in that space is a decision about exactly what you’re willing to give up, and what you’re not. For a pack meant for long mountain days and fast overnighters rather than expedition loads, we think a defined but minimal load path beats either
extreme.
Over and Out