Osprey Farpoint 40 vs Farpoint 55

These are not two different backpacks. The Farpoint 55 isa Farpoint 40 with a 15L daypack that zips onto its front panel — same clamshell, same suspension design, same nylon ripstop, same lifetime guarantee. Which makes this comparison unusually clean: you are not weighing features against features, you are deciding whether a bundled daypack is worth giving up guaranteed carry-on status.

At a glance

The dimension that decides it

Look at depth. The 40 is a stated 10 inches deep; the 55 is 12. Against the common US carry-on limit of 22 x 14 x 9 inches, the 40 is marginally over on depth — normal for a soft pack and usually fine unless it’s stuffed — while the 55 is over by three inches and also three inches too tall.

There is no packing trick that fixes that. The 55 is a checked bag, or it is a carry-on plus a personal item once you detach the daypack. Anyone telling you they carry a Farpoint 55 on is either detaching the daypack or getting lucky with a gate agent who wasn’t looking. On European budget carriers, where the free bag is under-seat sized, neither of these packs fits the free allowance at all — see our Europe roundup.

What the daypack is genuinely worth

Set aside the carry-on issue and the 15L daypack is a good piece of design. It zips securely to the main pack so you carry one object between cities, then detaches into a day bag with its own straps. On arrival, the main pack goes into a locker or a wardrobe and the daypack carries your laptop, documents, water and a layer.

The strongest version of the argument is the gate-check scenario. When a crew tells you the bins are full, you want your passport, medication, laptop and cables already in a separate bag you keep. Detach, hand over, walk on. That is a real benefit several times a year.

The honest cost is where it rides. A daypack on the front panel sits away from your spine and levers on your shoulders — loaded, the 55 combination carries noticeably less well than a 40 with the same weight in it. Osprey’s harness manages it; physics doesn’t go away.

The alternative nobody mentions: buy the 40 and a daypack you like

The Farpoint 55 costs more than the 40. That difference is roughly what a good travel daypack costs, which raises an obvious question: why not buy the 40 and choose your own daypack?

The case for doing exactly that is strong. You get to pick the daypack — a 2.5 oz packable that disappears when unused, an anti-theft 20L for pickpocket-heavy cities, or a 26L that doubles as your personal item. You keep guaranteed carry-on status on the main pack. And you can leave the daypack at home on trips that don’t need it. Our daypack roundup covers the field.

The case for the 55 instead: the daypack attaches, which no third-party bag does. Carrying two separate bags through a station means one on your back and one on your front or in your hand; the 55 makes that one object. If you move between cities often, that integration is worth paying for. If you mostly fly and stay put, it isn’t.

Do you actually need 55 liters?

Fifteen extra liters sounds like a small step and it isn’t — it is more than a third again as much bag. Three trip types justify it:

• Cold weather. Down, fleece and boots are the bulk that breaks a 40L pack. This is the honest case for a 55.
• Long trips with a base. A big bag that stays put plus a small bag that moves is the right structure, and the 55 is that structure in one purchase.
• Gear.Camera bodies, climbing shoes, dive kit — equipment doesn’t compress the way clothes do.

Outside those, extra capacity becomes extra weight, because bigger bags get packed fuller. A two-week trip is not a capacity problem; it is a laundry problem, and two weeks in a carry-on works through how to solve it in 40 liters.

Weight, and what you carry when you don’t need it

The 55 weighs a published 3.9 lb for both bags against 3.1 lb for the 40. Eight tenths of a pound is not much in isolation. It matters in two places: on carriers that weigh cabin bags — common outside the US, see our international roundup— and as a proxy for the fact that you are always carrying two bags’ worth of fabric, zips and straps, including on the trips where the daypack stays empty.

What’s identical, and worth knowing

Both packs open as full clamshells, so you pack them like suitcases rather than digging down a hole. Both have a genuinely padded, frame-backed hip belt — the feature that moves weight off your shoulders and the main reason to buy either over a budget pack. Both take a 15-inch laptop. Both are covered by Osprey’s All Mighty Guarantee, which repairs or replaces any product from any era, and which is the quiet reason these packs hold value.

And both come in a women’s-fit version — the Fairview 40 and Fairview 55— with a shorter back panel and narrower straps. That is a fit decision, not a gender one; see Farpoint vs Fairview and our torso fit guide.

The verdict

Buy the Farpoint 40 if you want one bag that reliably flies in the cabin. That is what most people searching for a travel backpack actually want, it is cheaper, it is lighter, and adding a daypack later costs little and gives you a better daypack.

Buy the Farpoint 55if you already know you’re checking a bag — winter trips, gear-heavy travel, long trips with a base — and you want the daypack integrated rather than dangling. Bought for that reason it is an excellent bag. Bought as “a Farpoint 40 with more room,” it is a carry-on you can’t carry on.