Why the Right Pack Changes Everything
A well-fitted backpack disappears into your body. A poorly fitted one becomes the only thing you think about after the first two hours. Choosing a hiking backpack isn't just about picking the biggest one on the shelf — it's about matching the right pack to your body, your trip type, and the gear you actually carry.
Start With Capacity: How Much Volume Do You Need?
Backpack volume is measured in litres. A useful starting framework:
| Trip Type | Volume Range | Notes |
|---|---|---|
| Day hike | 10–25 L | Water, snacks, layers, first aid |
| Weekend (1–2 nights) | 30–50 L | Tent, sleeping bag, food for 2 days |
| Multi-day (3–5 nights) | 50–70 L | Full backcountry kit |
| Extended expedition | 70 L+ | Long routes, technical gear, resupply gaps |
It's tempting to buy the largest pack available "just in case," but bigger packs encourage overpacking. Buy for the trips you take most often, and hire specialist packs for rare exceptions.
Fit Is Non-Negotiable
A pack that fits well transfers load to your hips, not your shoulders. The key measurement is your torso length — the distance from the top of your hip bones (iliac crest) to the bony bump at the base of your neck (C7 vertebra). This is not the same as your height.
- Most packs come in S/M and M/L sizes based on torso length (typically 40–52 cm range).
- Many mid-range and premium packs have adjustable torso lengths — ideal if you're between sizes or buying a pack as a gift.
- Always try a pack loaded with weight in-store if possible. An empty pack tells you almost nothing about how it will feel on trail.
Hip Belt: Where Your Weight Should Live
On a properly fitted pack, approximately 70–80% of the load rests on the hip belt, not the shoulder straps. The hip belt should sit on top of your hip bones, wrapping around them snugly. If the belt sits on your waist or feels loose, the pack is the wrong size or incorrectly adjusted.
Key Features to Look For
Suspension System
The frame and suspension system determine how well a pack transfers weight. Internal frames (the standard for most hiking packs) keep weight close to your body for better balance on trail. Look for a frame that follows the curve of your spine.
Access Points
- Top-loading: Most traditional hiking packs. Efficient and rain-resistant.
- Panel-loading (clamshell): Opens like a suitcase. Easier access to gear mid-trip. Common on travel and some trail-running packs.
- Bottom compartment: Many packs have a zippered lower section, useful for separating a sleeping bag from the main compartment.
Hydration Compatibility
Most packs include a sleeve for a hydration bladder and a port for the drink tube. This is a worthwhile feature for day hikes and trails where stopping to reach for a bottle is inconvenient.
Ventilation
Back panels range from padded foam (more contact, more heat) to suspended mesh systems that create airflow between your back and the pack. If you run hot, prioritise ventilated designs — though note these can make the pack feel slightly less stable under heavy loads.
Weight of the Pack Itself
Ultralight packs (under 1 kg) sacrifice durability and padding. Heavier packs (2+ kg) often offer more structure and organisation. For most three-season hikers, a pack between 1.2–1.8 kg hits the sweet spot of comfort and durability.
Before You Buy: A Quick Checklist
- Measure your torso length.
- Identify your most common trip type and target that volume range.
- Try multiple packs loaded with weight in-store.
- Check the hip belt fits your hip circumference.
- Assess access points for how you typically pack gear.
- Consider rain cover — either built-in or sold separately.
A great backpack is an investment that lasts a decade or more. Take your time, prioritise fit over features, and you'll find a pack that feels like an extension of your body by the end of day one.