What Actually Fits in an Osprey Atmos AG 65 (After Six Trips)

The Atmos AG 65 has been Mia's pack since 2022. Six trips, all over four nights, all with the same configuration. Here's what fits, what doesn't, and what we'd swap.

What fits comfortably

20°F down sleeping bag in compression sack

NeoAir XLite NXT pad

2P tent body + fly + poles + stakes (split with a partner's pack carries footprint)

Jetboil Flash + 230g canister + cup

4 days food (calorie-dense; Skratch + ProBars + dehydrated dinners)

1L Hydrapak bladder + 0.5L Smartwater backup

Patagonia Nano Puff + R1 hoody + rain shell

Headlamp, repair kit, FAK, water filter

What does NOT fit

A bear canister bigger than a Bearikade Weekender. The Bear Vault BV500 forces a bottom-up packing strategy that wastes 6L of usable space.

5+ days of cold-weather food. The pack tops out around 18kg before the suspension starts feeling sloppy.

A 1P tent + photography kit + backpacker's coffee setup. Pick two.

What we'd swap if buying again

Honestly, nothing. The Anti-Gravity suspension is still the best load-carrying system at this price point. The hipbelt pockets are too small for a phone with a case (Mia's only real complaint).