A solo traveler walks through an airport terminal with a backpack

Journeys

A solo flight, carry-on only

Published cabin geometry, a 35 L ballistic pack, and liquids that already fit the tray.

Traveler
Solo backpacker Couple Retirees traveling together Young family Business traveler
Travel mode
On foot Cruise Road trip Carry-on Rail

Length and climate

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What this trip asks of your gear

Aer lists 21.5 × 13.5 × 9 in on the Travel Pack 3 successor. That is the bag you walk to the gate. Everything else has to collapse into it.

Luggage

Published cabin geometry first. Then the cubes and the liquids tray.

Shoes

A sandal the maker calls packable, so the second pair does not eat the bag.

Shirts

A merino tee for repeat wear. The UPF shirt is the exposed afternoon.

The kit for this trip

Each pick solves a problem this trip creates. Read why before you buy.

Aer Travel Pack 4 35L in black, three-quarter studio view

Aer

Aer Travel Pack 4 35L

Aer lists 35 L, 3.90 lb, 21.5 x 13.5 x 9 in, and a padded sleeve for a laptop up to 16 in.

  • Solo
  • Couple
  • Family

$259 to $309 Price checked Aug 23, 2026

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Xero Genesis sandal

Xero Shoes

Xero Genesis Sandal

Xero calls the Genesis ultra-light, flexible, and packable.

  • Solo
  • Business

$14.99 to $49.99 Price checked Oct 13, 2026

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Osprey Daylite Plus daypack, photographed from above

Osprey

Osprey Daylite Plus

Osprey’s 20 L class everyday pack, covered by the All Mighty Guarantee.

  • Solo
  • Couple
  • Retirees

$70 to $90 Price checked Aug 23, 2026

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Trtl travel pillow in grey

Trtl

Trtl Pillow

A fleece wrap with an internal support stay. Trtl says it packs smaller than a U-pillow.

  • Solo
  • Couple
  • Retirees

$49 to $70 Price checked Aug 23, 2026

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Humangear GoToob+ silicone travel bottles in multiple sizes

Humangear

Humangear GoToob+

Locking silicone tubes in 50 ml, 75 ml, and 100 ml, sized for the cabin liquids tray.

  • Solo
  • Couple
  • Retirees

$10 to $16 Price checked Aug 23, 2026

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Also on the list

The small things people forget on this kind of trip.

  • Empty weight on the walk between buses and hostels
  • Paying twice for a cube or bottle you could skip
  • A bag that looks carry-on on the site and oversized at the gate

Describe you and your vacation

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All packing lists

A backpacking hostel trip

One carry-on pack, a liner for the bunk, and a stash for the passport that stays on you.

Same traveler, different trip

On foot
Cruise
Road trip
Rail