"Lightweight" and "small" get used interchangeably when people talk about travel backpacks, but they're not the same thing. A travel backpack lightweight enough to disappear in your luggage isn't always the most feature-packed option, and a genuinely small travel backpack isn't automatically the lightest either. Understanding the difference comes down to specific features, not just the litre count on the label. Here's how to actually choose.

What makes a travel backpack lightweight, not just small

A true travel backpack lightweight in design strips back structure, padding, and hardware to shave every possible gram, often at the cost of some comfort and organisation. The Osprey Ultralight Dry Stuff Pack is the clearest example in our range. At just 194 grams, it's a 20L roll-top pack that's genuinely waterproof, rated IPX5, with fully taped seams and a coated 40D recycled nylon shell. It packs down small enough to stuff into a pocket of your main pack, ready to unroll the moment you need a second bag for a day out exploring.

This is the pack you grab when weight matters more than structure, ideal as a packable backup, a day bag while travelling, or an emergency dry bag if the weather turns. What it sacrifices is internal organisation and back support, so it's not designed to carry heavy loads comfortably over a full day.

What makes a travel backpack genuinely small and structured

A small travel backpack, on the other hand, prioritises usability and organisation within a compact footprint, even if that means carrying a bit more weight. The Osprey Daylite Plus is a great example. Also 20L, it weighs in at around 585 grams, considerably more than the Dry Stuff Pack, but for good reason. It's built with a proper panel-loading main compartment, a padded laptop sleeve, dual water bottle pockets, and a structured shape that actually holds up when loaded, rather than collapsing in on itself.

This is the pack for day-to-day use while travelling: commuting, sightseeing, or as your primary daypack once you've arrived. The trade-off is straightforward, more features and structure means more weight, but for most travellers, that trade-off is worth making for a bag you'll use every single day of the trip.

The middle ground: technical features without the bulk

If you want a pack that leans technical without going full ultralight minimalism, the Exped Skyline 20L sits neatly between the two. It includes a stowable hip belt for genuine load support on longer days, a full-length side zip for quick access without unpacking from the top, and an included rain cover, features you won't find on either the Dry Stuff Pack or the Daylite Plus. It's still genuinely close to body and compact, but built with hiking and multisport use specifically in mind, not just city travel.

If you want to understand how this kind of feature trade-off applies more broadly across your whole kit, our guide, the ultimate guide to ultralight gear, is worth a read, along with the ultimate guide to ultralight backpacking for how this thinking applies to your entire pack, not just your day bag.

So which one should you actually pack?

If weight is your absolute priority and you just need a packable backup, go with the Osprey Ultralight Dry Stuff Pack. If you want a genuinely usable everyday travel backpack with real organisation, the Osprey Daylite Plus is the better call. And if you need something that can handle a proper hike as well as a day in the city, the Exped Skyline 20L covers both without excess bulk. Many travellers end up carrying two: an ultralight packable option as backup, paired with a more structured everyday pack as their main daypack.

It's also worth understanding how backpack design has evolved to offer these kinds of trade-offs in the first place. We've covered that in our guide, the evolution of the modern hiking backpack.

Dave Parker our Founder and CEO on a recent multi-day hike in Canterbury, New Zealand.

Why shop with us at PAST Outdoors

We're a family-owned Australian outdoor retailer with a genuine passion for helping people get out there properly equipped. Our team tests and uses the gear we sell, so when we recommend a travel backpack, whether lightweight or small and structured, it's because we've weighed up the trade-offs ourselves on real trips. We're proud to stock trusted brands like Osprey and Exped, and back every purchase with honest advice from people who actually spend time outdoors.

Thousands of travellers and hikers across Australia have trusted us to kit them out properly, and our customers keep coming back because we get the details right. Browse our full range of packs online today, or reach out to our team for personalised recommendations.

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