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Peak Design Travel Backpack 45L
#1 Overall travel pack Updated 1 June 2026

Peak Design Travel Backpack 45L

The premium one-bag travel pack — expandable, organised, carry-on sized

THE undig SCORE — 4 SOURCES, UNTANGLED
90
Out of 100

Key characteristics

Capacity
25–45 L
Weight
1.4–2.1 kg
Laptop sleeve
Up to 16"
Material
Nylon / polyester
Weather
Water-resistant
Opening
Clamshell / panel

Highlights

  • Expands from 35 L to 45 L in seconds
  • Rear-loading clamshell opening like a suitcase
  • Dedicated laptop and tablet sleeves
  • Weatherproof 400D nylon canvas with aluminium hardware

Our take

The gold standard for carry-on travel backpacks. Expensive, but the expandable design, suitcase-style access and premium materials justify the price for frequent flyers.

Pros & Cons

Pros

  • + Best-in-class organisation and internal layout
  • + Expandable design gives flexibility on packing
  • + Extremely durable weatherproof materials
  • + Stowable hip belt and shoulder straps for luggage mode

Cons

  • Heavy at 2.05 kg empty
  • Premium price — one of the most expensive travel packs
  • Expanded 45 L can exceed some airline size limits

Review sources

We aggregate scores from these sources. Each source is weighted by credibility tier. Clicking a source takes you to the full review.

How we score

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