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

Aer official product photography

Aer

Aer Travel Pack 4 35L

Current Aer carry-on. Official page: 35L, 3.90 lb, 21.5 × 13.5 × 9 in, 1680D Cordura ballistic nylon, $259 list.

Why we recommend it

Lay-flat main compartment, full published geometry and named YKK/Duraflex hardware on the live SKU (Travel Pack 3 is marked discontinued on Aer’s own page).

Who it fits

  • Solo backpacker. One person, one bag, grams and a budget you can still spend on the ticket.
  • Couple. Two people sharing cubes, quiet on the plane, and a bag each that still fits the overhead.
  • Young family. Car seats, a stroller, snacks, and one extra pair of hands for the day bag.

$259 to $309 Price checked Aug 23, 2026

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Ballistic nylon 35L listed at $259 on aersf.com. X-Pac and Ultra variants have listed higher ($289 / $309 on Aer pages). Band covers current official variants. Source: Aer Travel Pack 4 35L. Checked Aug 23, 2026. Confirm the price before you buy.

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The New York skyline across the water at dusk

Carry-on backpacks

Travel Pack 4 35L is a lay-flat organizer: suspended 16 in laptop pocket, dual bottle pockets, luggage pass-through, hidden tracker pocket, lockable zippers. Those are Aer’s own bullets.

Aer’s product page for Travel Pack 3 now says that pack is discontinued and points here, so this page follows the live SKU.

Shortlist reason: complete public spec block and a still-sold flagship. Tradeoff the numbers already show: 3.90 lb is not an ultralight number; X-Pac/Ultra pages list slightly lower weights at higher prices.

Open the field note · Aer

The details
Volume 35 L
aersf.com
Weight 3.90 lb (ballistic nylon 35L)
aersf.com
Dimensions 21.5 × 13.5 × 9 in (54.5 × 34 × 23 cm)
aersf.com
Laptop Padded suspended sleeve, up to 16 in
aersf.com
Exterior 1680D CORDURA® ballistic nylon (bluesign® approved)
aersf.com
Hardware YKK® zippers, Duraflex® hardware
aersf.com

Pairs well with

Bellroy Transit Workpack in black

Bellroy

Bellroy Transit Workpack

A slim, work-first travel pack with official dimensions on Bellroy’s site and a three-year warranty program Bellroy describes publicly.

  • Solo
  • Couple
  • Retirees

$199 to $249 Price checked Aug 23, 2026

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Cotopaxi Allpa 35L Travel Pack in crimson, front studio view

Cotopaxi

Cotopaxi Allpa 35L Travel Pack

Clamshell packing, published 35L and sub-1.4 kg figures on current regional product pages, and a still-sold flagship line. Price varies by region; we log a wide USD-equivalent band.

  • Solo
  • Couple
  • Family

$200 to $330 Price checked Aug 23, 2026

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