How to Choose a Hiking Backpack: An Expert Guide

Selecting the right hiking backpack is one of the most important decisions you’ll make before hitting the trails. The right backpack ensures you’re comfortable, your gear is well-organized, and your experience is enjoyable. But choosing the perfect hiking backpack can be overwhelming with so many types, sizes, and features available.

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Choosing a hiking backpack involves considering factors such as size, weight, fit, and the features that best suit your hiking style. Whether you’re a weekend hiker or an avid backpacker, the right backpack can make your outdoor adventure more enjoyable and comfortable.

So, let’s break down everything you need to know to choose the right hiking backpack for your needs.

What Size Hiking Backpack Do You Need?

The size of your hiking backpack is one of the first things to consider when choosing the right one. The size determines how much gear you can carry and affects the comfort and weight distribution.

What size hiking backpack is best for a day hike vs a multi-day hike?

If you’re heading out for a day hike, you don’t need a large backpack, but for extended hikes, you’ll need more space to carry essentials like a sleeping bag, food, and extra clothes.

Backpack SizeBest ForCapacity RangeDaypack (15-30L)Day hikes, short trips15 – 30 litersOvernight (30-50L)Weekend hikes, short camping trips30 – 50 litersMulti-Day (50-70L)Backpacking, multi-day hikes50 – 70 liters

1. Daypacks (15-30 liters):

For day hikes, a small daypack is usually enough. These backpacks can fit your essentials—water, snacks, a jacket, and a camera—without weighing you down. Daypacks are ideal for hikes that last just a few hours or a single day.

• Best For: Hiking on well-defined trails, light day trips.
• Capacity: 15-30 liters
• Key Features: Compact, lightweight, minimal compartments.

2. Overnight Backpacks (30-50 liters):

These packs offer more space for an overnight trip, including room for a small tent, sleeping bag, and food for the night. They strike a good balance between comfort and capacity without being too bulky.

• Best For: Weekend trips, one-night camping.
• Capacity: 30-50 liters
• Key Features: Extra compartments for food, water, and a small tent.

3. Multi-Day Backpacks (50-70 liters):

For longer trips, you’ll need a larger backpack to carry all your gear for several days. These backpacks provide plenty of space for larger tents, sleeping bags, cooking equipment, and extra clothing. The suspension system is also designed to distribute weight evenly to reduce fatigue.

• Best For: Extended backpacking trips.
• Capacity: 50-70 liters
• Key Features: Hydration reservoirs, advanced suspension systems, multiple compartments.

What Are the 2 Types of Backpacks in Hiking?

When it comes to hiking backpacks, there are two primary types: internal frame and external frame. Each type offers distinct benefits and is suited for different kinds of hiking.

What are the disadvantages of internal frame packs?

While internal frame backpacks are more common for modern hiking, they can sometimes lack breathability and storage flexibility due to their compact, rigid design.

Backpack TypeProsConsInternal Frame PacksCompact, better mobility, sleek designLess breathable, hard to pack large itemsExternal Frame PacksBetter weight distribution, more breathableBulky, not ideal for technical terrain

1. Internal Frame Backpacks:

Internal frame backpacks are designed to sit close to your body, which makes them ideal for agility on rough, uneven terrain. They tend to be lighter and more compact, so they are great for faster-paced hikers who don’t want to be weighed down by bulk. The internal frame helps distribute the weight better, reducing stress on your back and shoulders.

• Best For: Speedy hikes, technical terrain, lightweight multi-day hikes.
• Key Features: Sleek design, excellent for agility.

2. External Frame Backpacks:

External frame backpacks have a frame that is visible outside of the pack. They are excellent for carrying heavy loads, as the frame allows for better weight distribution across your back and hips. The large, open design provides more ventilation, making them ideal for warmer climates. However, they can be bulkier and less agile than internal frame packs.

• Best For: Carrying heavy gear, long-term backpacking trips.
• Key Features: Better ventilation, more packing space.

What Features Should You Look for in a Hiking Backpack?

When selecting a hiking backpack, it’s essential to look at the features that ensure comfort, durability, and convenience. These features can make a huge difference in your overall hiking experience.

Which features are essential for comfort and convenience?

The most important features to look for include adjustable straps, adequate padding, hydration reservoirs, and compartments for organization.

1. Adjustable Straps and Hip Belts:

The best hiking backpacks offer adjustable shoulder straps, chest straps, and hip belts to ensure an even distribution of weight. The hip belt should sit comfortably on your hips to transfer the weight of the pack from your shoulders to your hips, making the pack more comfortable to carry.

• Best For: Comfort and weight distribution.
• Key Feature: Adjustable straps for a customized fit.

2. Hydration Reservoir Compatibility:

For long hikes, staying hydrated is crucial. Many hiking backpacks come with a sleeve for a hydration reservoir, which allows you to drink water without having to stop and open your pack. Some even come with a hose for easy sipping.

• Best For: Hydration during long hikes.
• Key Feature: Hydration reservoir sleeve and hose.

3. Ventilation:

Backpacks with mesh or breathable back panels are great for keeping air flowing between your back and the pack, preventing you from getting too hot and sweaty.

• Best For: Warm weather hiking.
• Key Feature: Breathable back panel to improve airflow.

What Is the Difference Between a Travel Backpack and a Hiking Backpack?

While both travel and hiking backpacks serve as storage for your belongings, they are designed with different purposes in mind. It’s important to choose the right one depending on whether you’re going on an outdoor adventure or a city trip.

What is the difference between a daypack and a backpack?

A daypack is a smaller, lighter pack used for day hikes, while a hiking backpack is designed for longer, more rugged trips with additional features for comfort and convenience.

1. Hiking Backpacks:

Hiking backpacks are designed for outdoor adventures and typically have more specialized features like hydration compatibility, multiple compartments, and a more durable design to handle rough conditions. They are built to support long hikes and provide extra comfort for carrying heavier loads.

• Best For: Hiking, backpacking, and outdoor adventures.
• Key Feature: Specialized compartments for outdoor gear and better weight distribution.

2. Travel Backpacks:

Travel backpacks, on the other hand, are designed for travel convenience. They are often more focused on organization, with multiple pockets for storing clothes, electronics, and other items. While some travel backpacks can handle light hikes, they typically don’t have the same durability or features as hiking-specific backpacks.

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• Best For: Short-term travel, urban exploration.
• Key Feature: Versatility, comfortable for carrying clothes and electronics.

Which Material is Best for Hiking Backpacks?

The best material for a hiking backpack is high‑denier nylon—specifically 70D to 210D ripstop nylon—for its balance of lightweight durability, tear resistance, and water repellency. Polyester offers affordability and UV resistance but is heavier, while waterproof coatings add weather protection.

1. Nylon vs. Polyester: Durability Comparison

MaterialDenier RangeAbrasion Resistance (Martindale Cycles)Water ResistanceUV ResistanceTypical Weight (g/m²)Nylon Ripstop70–210D30,000+Moderate (PU‑coated)Low–Moderate55–120Polyester100–600D20,000+Moderate–HighHigh90–160

• Nylon (70D–210D): Best for ultralight to midweight packs (400–800 g). Ripstop weave prevents tears from spreading.
• Polyester (100D–600D): More UV stable—ideal for long sun exposure—but heavier (+15–25%) and slightly less tear‑resistant.

2. Denier and Ripstop: What They Mean

Denier (D): Fiber thickness; higher = more durable but heavier.

Ripstop: Reinforced weave (grid pattern) stops small tears from growing.

• 70D ripstop: Ultralight, suitable for daypacks.
• 210D ripstop: Balanced strength for multi‑day packs.
• 420D+ polyester: Budget choice for weekend hikers.

3. Weatherproofing and Coatings

Coating TypeWater Column Rating (mm)BreathabilityDurabilityCostPU (Polyurethane)1,500–5,000LowModerateLowDWR (Durable Water Repellent)—HighLow–ModerateMediumTPU (Thermoplastic Polyurethane)5,000–20,000Low–ModerateHighHigh

• PU-coated nylon: Standard; water beads off but may soak under heavy rain.
• DWR finish: Easy maintenance; reapply annually.
• TPU laminate: Fully waterproof; premium for wet climates.

4. Weight vs. Durability Trade‑Off

• Ultralight hikers prioritize <500 g pack weight (70D nylon).
• Multi-day trekkers need 210D+ nylon for durability, tolerating a 150–250 g weight increase.

5. Sustainability Considerations

• Recycled nylon/polyester: Reduces waste; 10–20% lighter than virgin fabrics.
• Brands like Szoneier offer eco-friendly options with comparable performance.

For most hikers, 210D ripstop nylon with a PU+DWR finish delivers the optimal mix of strength, water resistance, and weight.

How to Ensure a Proper Fit for Your Hiking Backpack

A proper fit is critical for your comfort and safety on the trail. If your backpack isn’t properly fitted, you’ll experience unnecessary strain on your back, shoulders, and hips.

1. Adjusting the Straps:

The shoulder straps, chest straps, and hip belt should all be adjustable to suit your body. When trying on a backpack, make sure to adjust the straps to see how well they distribute the weight of the pack.

• Best For: Comfort, reducing strain.
• Key Feature: Adjustable straps for a personalized fit.

2. Testing the Fit:

Once your pack is loaded with weight, take it for a test walk. The pack should fit snugly against your body without causing any discomfort or rubbing. If the weight feels unbalanced, it’s a sign the straps or fit need adjustment.

• Best For: Ensuring the pack is stable during movement.
• Key Feature: Ability to adjust for comfort and stability.

What Is the Best Brand of Hiking Backpack?

The “best” brand depends on your hike length, budget, and feature needs. Osprey, Deuter, Gregory, and The North Face consistently top expert reviews for comfort, durability, and performance.

BrandFlagship ModelCapacity RangeWeight (Empty)Price RangeKey StrengthOspreyAtmos/Aura AG50–65 L1.45–1.75 kg$180–$300Superior suspension, adjustable fitDeuterAircontact50–60 L1.6–2.0 kg$150–$260Excellent ventilation, rugged buildGregoryBaltoro/Deva55–65 L1.7–1.9 kg$200–$320Exceptional comfort under heavy loadThe North FaceBanchee/Storm50–65 L1.4–1.6 kg$140–$250Lightweight, value for money

1. Osprey

– Adjustable torso length, Anti‑Gravity mesh harness for airflow

– Most versatile for weekend through thru‑hikes

2. Deuter

– Aircontact back system reduces sweat by 15% vs peers

– Sturdy design for rugged terrain

3. Gregory

– Custom Molded foam hipbelt for ultra comfort

– Load lifter straps optimize center‑of‑gravity

4. The North Face

– Ideal for budget-conscious hikers

– Balanced features with solid durability

Conclusion: How to Choose the Best Hiking Backpack for Your Needs

Choosing the right hiking backpack is essential for ensuring comfort and durability on the trail. Consider your hike’s length, terrain, and weather conditions when selecting a backpack, and make sure the pack fits comfortably. By focusing on size, fit, and essential features like ventilation and hydration compatibility, you can find the perfect backpack to enhance your hiking experience.

Ultralight backpacking is more of a lifestyle choice than a simple set of gear purchases. Even if you buy the fanciest of fancy dyneema/titanium/gossamer woven ultralight backpack in the world—the most meaningful way to lower your pack weight is from making gear sacrifices. For ultralight hikers, these sacrifices look like leaving a stove behind and letting cold ramen marinate in your pack for hours before eating it (called cold soaking) or choosing a tarp/hiking pole system over a full on tent. The benefits from those sacrifices coupled with ultra lightweight backpacking gear are plentiful, though.

In this article, I am going to break down the main differences between an ultralight backpack and heavier traditional backpacks, help you decide if you need one, and deliver buying suggestions. I am going to base this advice on the more than two decades I have been backpacking and 25 years I have spent as a guide, outdoor industry retail employee, and professional gear tester.

Differences between lightweight multi-day backpacks and regular backpacks

I mean, the obvious answer to this question is simple: the weight of these multi day backpacks is different—butt the differences lie within how ultralight packs shave off the ounces (or pounds) in their construction. Ultralight packs use much lighter materials which have a tendency to be a little less durable than their heavier counterparts. Lightweight and ultralight packs usually have way fewer features (all those external pockets, every compression strap, and zipper adds grams!) and usually have one main compartment to place all of your gear in. Heavier duty packs are usually built from more robust materials and can handle heavy loads more comfortably with padded shoulder straps and hip belts. They also tend to have more general comfort features (or doohickies as I like to call them) like a frame that allows your hips to rotate with each step or an uber intricate mesh back that mitigates back sweat.

Lightweight Hiking Backpacks Pros & cons

• Pros: You can shave off as many as four pounds of weight from your overall kit if you go from a monster high capacity backpacking pack to the best ultralight backpack. Likely, you would be shaving more like ounces to a pound off of your kit with a pack weight downgrade but it most certainly can help you stay disciplined about packing light. Every ul pack have less material to work with and is built with efficiency in mind so the best ones have really smart usability features—like ultralight stretchy mesh external pockets that you can access while you hike. These features can add to the overall efficiency of your movement (and in turn calorie output) of your hike.
• Cons: There isn’t a lot of room for super fluffy shoulder straps or weight distributing frames so for the most part, they are frameless packs and less comfortable. Lightweight backpacking packs are also often less durable since they have to use thinner materials than their burly counterparts. An ultralight backpack (or ul pack) and a lightweight backpack, for the most part, use more expensive materials so they have a tendency to be more expensive than packs built for heavy loads.

Traditional Hiking Backpacks Pros & cons

• Pros: The extra weight delivers opportunities for high capacity packs to be more feature rich. This translates into little hiker treats like a special zippered pocket for your snackies, built out hydration pouch integration, and a solid hipbelt pocket. Heavier weight backpacking packs also often have more comfort details than lighter counterparts which means that you can carry more, more comfortably. The most durable materials are often the heaviest, so the high capacity day hiking packs are often made of more durable materials. You can get a pretty solid one of these packs, like TK, for cheaper than a lightweight or ultra light pack.
• Cons: Just like people are likely to fill a bigger house with more furniture, when you have a heavy pack that was built to carry a whole heap of gear you are likely to bring heavy loads on a backpacking trip. All of the extras can add up and lead to much more tiring days in the mountains. A heavy pack on its own leads to more fatigue on your legs and feet as well if you plan to put in some serious hiking miles.

Tips for packing efficiently (aka How to organize your gear in your backpack)

In order to save weight on materials, an ultralight pack is usually composed of one big compartment—as opposed to multiple interior pockets or compartments that can often be found in a heavier backpacking backpack. This one large opening needs to be packed and organized more thoughtfully than a pack with purpose built compartments—like a sleeping bag compartment—in order for you to be able to find your ultralight gear as efficiently as possible. For comfortable weight distribution, place your heaviest pieces of gear low and close to your body. For efficiency, put the things you need to reach throughout the day—food, water purifier, and sunscreen—at the top of your pack and things like a sleeping bag and a lightweight fanny pack for a day hike that you won’t need until you are done walking at the bottom or places that are harder to reach.

Recommendations for the best lightweight and high-capacity backpacks

• Lightweight: Hundreds of Pacific Crest Trail hikers stop in my hometown of Ashland, OR to restock every summer. While I haven’t taken an official tally, the Hyperlite Mountain Gear Southwest frameless pack appears to be the most popular based on the packs I see the hikers place outside of the businesses in town. The Gossamer Gear Gorilla has an insane durability to weight ratio thanks to the tough Robic recycled fabric it was built from and super lightweight internal frame to add a bit of structure to your hike. The Mountain Laurel Design Burn 38L was built with efficiency at the forefront and the Ultra X version is fully seam sealed for an impressive level of waterproofing in a ul pack. Superior Wilderness Designs SL 40 Ultra also utilizes a removable internal frame to help distribute your load and an impressively thick hip belt for its bantamweight weigh in.
• High-Capacity: Deuter Aircontact Core 45 +10 trekking backpack offers an extremely cush shoulder strap experience which coupled with a mesh back panel that creates space between your back and the pack make it insanely comfortable—even with heavy loads. Mystery Ranch’s Bridger 65 is a hiking backpack that was built to haul some seriously heavy loads thanks to internal steel spring wire frame and yolk built with long distance weight distribution in mind.

Frequently Asked Questions

What is a good base weight for ultralight backpacking?

A solid base weight excluding food and water is 10 to 15 pounds for ultralight backpacking. As I have said multiple times in this article, hitting that low of a weight means sacrificing lots of comforts like fancy meals and maybe even a stove but if you are disciplined about packing only the basics of what you need—lightweight shelter, lightweight sleeping pad and minimalist mat, your backpack, clothes, and vessels for drinking and eating—you can get there.

What are the best ways to test the durability of a lightweight backpack?

The best way to test the durability of any backpack is hundreds of days in the field. Day after day of repetitive use is where you will notice all of the wear points in a lightweight multi day pack and also be able to test the abrasion resistance of the materials. Since you may not have that much time to test the best backpack yourselves, it is worthwhile to research ultralight hikers who are backpacking experts—many exist who have hiked the Pacific Crest Trail, Appalachian Trail, and/or the Central Divide Trail—and read what reviews they have specifically focused on durability in an ultralight backpack.

What are the most important factors to consider when buying a lightweight multi day backpack?

The best backpacking backpack is the one you are going to actually enjoy using. As such: the most important factor to consider when buying a lightweight multi day backpack is how much comfort you are willing to sacrifice for weight. Long before you start going down the rabbit hole of the ounces shaved from one ultralight pack material to another, ask yourself if you are willing to deal with mosquitos buzzing your ears all night to shave pounds off your packing kit by eschewing a tent for a tarp.

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