Choose the right backpack for multi-day hiking

You’ll immediately notice if a rucksack for a multi-day hike isn’t right. Not in the shop, but after a few hours with a tent, food, water and extra clothes on your back. At that point, it matters little how stylish the model looks in a photo. What really counts is carrying comfort, the right capacity and a secure load.

For anyone setting off for a night or several days at a stretch, the rucksack is one of the most important items in the whole pack. Choose the right one and the trip will be easier to manage. Choose the wrong one and you’ll often end up with pain in your shoulders, lower back or hips, and the journey to camp will usually feel longer than it actually is.

What size rucksack do you need for a multi-day hike?

The most common question is how many litres you need. The short answer is that it depends on the season, the length of the trip and how compact the rest of your kit is. A light pack for one or two summer nights requires significantly less volume than a cooler trip with a larger sleeping bag, more food and extra layers.

For many overnight hikes, 40 to 55 litres works well, especially if you’re using lighter tents and sleeping systems. If you’re carrying more food for several days, or if your kit takes up more space, 55 to 70 litres is often a safer choice. For winter-like conditions or really bulky packs, even larger models may be needed, but for most three-season trips, an overly large rucksack is mostly an invitation to pack too much.

Volume is therefore not just about the number of days. It is just as much about how well thought-out the rest of your kit is. A compact tent, a packable sleeping mat and a sleeping bag with a reasonable pack size make a big difference. That is why many people who want to travel light can also choose a smaller rucksack without compromising on safety.

Fit is more important than many people think

You can get used to a lot out on the trail, but a rucksack that doesn’t fit your body is rarely a good compromise. Two models with the same volume can feel completely different depending on back length, the carrying system and how the hip belt sits.

A large proportion of the weight should rest on your hips, not your shoulders. If the shoulder straps do all the work, you’ll quickly get tired. The hip belt therefore needs to sit firmly over the hip bone, and the back length must be correct so that the rucksack sits where it should. The chest strap stabilises but shouldn’t be used to compensate for a poor basic fit.

It is also worth bearing in mind that a rucksack that feels comfortable when empty can feel completely different when loaded. For multi-day hikes, it is the feel when loaded that counts. Carrying systems with a frame or rail often provide better weight distribution as the load gets heavier, whilst simpler and lighter models can work perfectly well if the total weight is kept down.

Back length and adjustment

If the rucksack is available in different sizes, this is often better than a one-size-fits-all model. Adjustable back length can be practical, but it should not be seen as a universal solution. The better the basic fit, the easier it is to achieve a stable carrying position.

Also check how the straps and load adjusters work together. You should be able to pull the rucksack in towards your body without the shape collapsing. A good rucksack sits close to your back, moves in a controlled manner and doesn’t feel like it’s pulling backwards on every uphill stretch.

Weight, load-bearing capacity and materials

Low weight is attractive, but there is a limit where a lighter construction also means poorer support or lower durability. For a rucksack intended for multi-day hikes, it is important to weigh the rucksack’s own weight against how much it actually needs to carry.

If your basic kit is already light, a lighter rucksack may be a good choice. It saves weight without compromising on comfort. But if you know you often carry a lot of food, water or more traditional kit, it is often wiser to choose a slightly heavier model with a better carrying system. A few hundred grams extra in the rucksack itself can provide significantly better comfort as the total weight increases.

The choice of materials also plays a role. Thinner fabrics keep the weight down, whilst sturdier materials often offer a longer lifespan and better resistance to rocks, branches and heavy use. For many Swedish hikers, a practical middle ground is best – light enough not to be unnecessarily heavy, but not so thin that you have to treat it like a delicate specialist garment.

Features that actually make a difference

It’s easy to get bogged down in the details, but not all features are equally important. For multi-day hikes, it’s above all access to your gear and the ability to keep your pack organised that make a real difference in practice.

Side pockets for a water bottle, a stretch pocket at the front for rainwear or wet items, and a top flap for things you want to reach quickly are often more useful than lots of small compartments. Attachments for walking poles can be practical, and the ability to compress the rucksack when it’s not full ensures the load sits better.

Rain protection is an area where opinions differ. Some prefer integrated protection, others pack in waterproof stuff sacks and manage without. In Swedish terrain, where the weather can change quickly, it is wise to have a clear plan for moisture protection regardless of the solution.

Ventilated back or closer contact?

Some rucksacks prioritise air gaps and ventilation, others a tighter fit against the back for better stability. No single solution is best for everyone. More ventilation may feel more comfortable in hot weather, but a rucksack that sits close to the body is often perceived as more stable in hilly terrain and when the ground is uneven.

If you’re walking long distances on trails in summer heat, ventilation may be a higher priority. If you’re tackling more technical terrain or want maximum control over your load, a tighter back panel might be the way to go.

How to pack your rucksack for better balance

Even a good rucksack performs poorly if packed incorrectly. Heavier items should sit close to your back and roughly halfway up. This keeps the centre of gravity more controlled. Light and bulky items, such as a sleeping bag and extra clothes, can be placed further down or further out.

Items you need during the day should be easily accessible. A rain jacket, extra layers, snacks, a water filter or first aid kit should not be at the very bottom, under the tent and food bag. This saves both time and frustration when the weather changes or when you want to make a quick stop.

Also pack so that the contents do not shift. Loose packing makes the rucksack feel unstable. Compression straps help, but the groundwork is done inside the rucksack. Fill in empty spaces and keep the structure even.

Common mistakes when choosing a rucksack for multi-day hikes

A common mistake is choosing a rucksack that is too large ‘just to be on the safe side’. The result is often that it gets filled with things that aren’t actually needed. Another is to fixate on low weight without considering how much the model is designed to carry.

Many also underestimate the importance of fit. It’s not enough that the hip belt fastens or that the shoulder straps feel soft. The rucksack must work with the body under load. Otherwise, even a technically sound model will fail in practice.

There is also a tendency to try to solve a problem of an overly heavy pack system by using a larger rucksack. It is often better to look at the bigger picture. If your tent, sleeping bag and sleeping mat take up too much space or weigh more than necessary, the rucksack will quickly become merely the final link in a less efficient system.

Match the rucksack to the rest of your kit

A rucksack should not be chosen in isolation. It needs to suit what you’re actually carrying. If you already have light and compact kit, you can often choose more streamlined models and keep the total weight down. If you have a larger tent, a warmer sleeping bag or more traditional cooking kit, you’ll need more volume and often a sturdier frame as well.

That is why many hikers benefit from thinking in terms of systems rather than individual products. A smaller and lighter pack not only makes the hike easier on the trail. It also influences which rucksack is the right choice from the outset.

At specialist shops like Hikingstore, it’s often easier to compare rucksacks alongside tents, sleeping systems and other kit, precisely because everything is interconnected in practice.

What’s the right choice in practice?

For shorter multi-day hikes across three seasons, a rucksack that fits well, is reasonably lightweight and can handle the load you’ll actually be carrying will go a long way. You don’t need the largest model, nor do you need the lightest. The important thing is the balance between volume, comfort and durability.

If you’re a newer hiker, it’s often wise to prioritise fit and forgiving carrying comfort over chasing every gram. If you’re more experienced and already have your packing weight under control, a lighter and simpler model might be a better choice. Both approaches are valid, as long as the rucksack suits your trip and not someone else’s ideal.

The best buy is usually the rucksack that makes you want to keep walking the next day too.