What Backpacking Backpack Should I Get?

Table of Contents

1. Introduction
2. Understanding Pack Volume: How Much Space Do You Need?
3. The Importance of Torso Length
4. Weight Distribution and the Hip Belt
5. Suspension Systems and Frames
6. Essential Features to Look For
7. Materials: Weight vs. Durability
8. Matching the Pack to Your Experience Level
9. How to Test a Pack Before You Buy
10. Organizing Your Gear Inside the Pack
11. Maintaining Your Gear
12. The BattlBox Mission and Your Next Adventure
13. FAQ

Introduction

The realization usually hits around mile six. Your shoulders are burning, your lower back feels like it’s being crushed by a hydraulic press, and the "perfect" pack you bought online is suddenly your worst enemy. Every outdoor enthusiast has been there. At BattlBox, we’ve spent years under the weight of different frames, testing everything from minimalist thru-hiking kits to heavy-duty expedition haulers. We know that the best pack isn't necessarily the most expensive one—it's the one that matches your body and your mission. This guide will walk you through how to measure your torso, select the right volume, and understand the technical features that make or break a trip. By the end, you’ll know exactly how to choose the gear that carries your life on your back, and when you’re ready to build the rest of the kit, build your BattlBox subscription.

Quick Answer: Most backpackers should look for a 50L to 65L pack with an internal frame that matches their specific torso length. If you are doing overnight trips, a 45L pack is usually sufficient, while week-long expeditions require 70L or more.

Understanding Pack Volume: How Much Space Do You Need?

The first question you must answer is how long you plan to stay in the backcountry. Backpack size is measured in liters, which refers to the total volume inside the main compartment and the external pockets. It is a common mistake to buy the biggest pack available "just in case." A larger pack weighs more and encourages you to overpack, leading to unnecessary fatigue. For a deeper sizing breakdown, see What Size Backpacking Backpack Should I Get?.

Think about your gear list before you buy the bag. If you have high-end, ultralight gear, it will likely compress more, allowing you to use a smaller volume. If you are using entry-level sleeping bags or bulky tents, you will need more room. At BattlBox, we often suggest laying out all your gear—your sleep system, cook kit, and clothing—before deciding on a liter capacity. If you only plan to own one backpack, this is the category to explore in our camping collection.

The 50L to 65L range is the most versatile. This size is large enough to hold a bear canister (a hard-sided food container required in many National Parks) and enough food for a four-day trek. If you only plan to own one backpack, this is the category to explore.

Key Takeaway: Don't buy a pack to fit your "what if" scenarios; buy a pack that fits the 80% of trips you actually plan to take.

The Importance of Torso Length

Your height has almost nothing to do with your backpack size. You can be six feet tall and have a short torso, or five-foot-five and have a long one. Most quality backpacking packs come in sizes (Small, Medium, Large) or feature an adjustable suspension system. If the pack is too long for your torso, the weight will pull away from your shoulders. If it is too short, the hip belt will sit too high and fail to support the load. If you’re shopping for a pack that fits this range, the Rockagator Hydric Series 40-Liter Waterproof Backpack is a strong real-world example.

How to Measure Your Torso

You will need a flexible measuring tape and a friend to help you.

• Step 1: Find the C7 Vertebra. Tilt your head forward and feel for the bony bump at the base of your neck. This is your starting point.
• Step 2: Find the Iliac Crest. Reach down to your hips and find the top of your hip bones on your sides. Imagine a horizontal line connecting these two points across your back.
• Step 3: Measure the Distance. Have your friend measure from the C7 vertebra down to that imaginary line at your iliac crest. This measurement, usually between 15 and 22 inches, is your torso length.

Once you have this number, check the manufacturer’s size chart. Many brands offer specific ranges for their sizes. If you fall between sizes, it is generally better to go with the smaller size or choose a pack with an adjustable harness.

Weight Distribution and the Hip Belt

The most critical component of any backpack is the hip belt. About 70% to 80% of the pack’s weight should rest on your hips, not your shoulders. The goal is to transfer the load to your skeletal structure rather than straining your muscles.

A good hip belt should "hug" your iliac crest. It should be padded enough to prevent hot spots but firm enough that it doesn't collapse under a 30-pound load. When you try on a pack, make sure the padding wraps around the front of your hip bones. If the padding stops too far back, the webbing of the belt will dig into your skin.

Don't forget the sternum strap. This is the small strap that connects your shoulder straps across your chest. Its job is not to hold weight, but to keep the shoulder straps from sliding off your arms. It should be positioned about two inches below your collarbone.

Suspension Systems and Frames

Most modern packs use internal frames. These consist of aluminum stays or a plastic framesheet hidden inside the back panel. They are designed to be low-profile and move with your body. External frames (the metal ladders you see in old movies) are rare today but are still used by some for carrying extremely heavy, awkward loads like hunting trophies or massive expedition gear.

Ventilated Mesh Back Panels

One of the biggest innovations in recent years is the suspended mesh back panel. These designs create a gap between your back and the pack itself. This allows for airflow, which significantly reduces "swamp back" in hot climates. While these are incredibly comfortable, they do shift the pack's center of gravity slightly further away from your body.

Load Lifters

Load lifters are the small straps located at the top of your shoulder straps. They connect the harness to the frame of the pack. When you pull these, they pull the top of the pack closer to your back, preventing it from swaying. In a perfectly fitted pack, these straps should sit at roughly a 45-degree angle.

Bottom line: A pack with a great suspension system will make 30 pounds feel like 20, while a poor system will make 20 pounds feel like 40.

Essential Features to Look For

When you are staring at a wall of gear, it is easy to get distracted by "bells and whistles." Focus on these functional features instead:

• Side Pockets: These should be deep enough to hold a one-liter water bottle securely. A MODL Bottle is a compact option if you want a durable bottle system.
• Front Stretch Pocket: Often called a "shove-it" pocket, this is perfect for stashing a rain shell or a wet tent fly that you don't want inside the main compartment.
• Hip Belt Pockets: Essential for your Every Day Carry (EDC) items like a pocket knife, lip balm, or a small snack. Start with the Sharp Edges collection.
• Hydration Sleeve: Most packs have an internal pocket for a water bladder and a port for the drinking tube. If you're building out the rest of your water system, check the water purification collection.
• Compression Straps: These allow you to "cinch down" the pack when it isn't full, keeping the contents from shifting.

Note: Always check for a rain cover. Some packs include them in a dedicated bottom pocket, while others require you to buy one separately. A pack liner or a heavy-duty trash bag inside the pack is also a great way to ensure your sleeping bag stays dry. A waterproof dry bag is another smart backup.

Materials: Weight vs. Durability

Backpack materials are measured in Denier (D). This refers to the thickness of the individual fibers in the fabric. A 100D nylon is very light but can tear if snagged on a sharp branch. A 500D or 1000D nylon is nearly bulletproof but weighs significantly more.

Most mainstream packs use a mix of materials. They might use a heavy-duty fabric on the bottom where you set the pack on the ground, and a lighter fabric on the body to save weight. If you plan on bushcrafting or hiking in dense, thorny brush, prioritize durability over a few saved ounces. For a more complete trail checklist, see What Gear Do You Need for Backpacking?.

Matching the Pack to Your Experience Level

If you are a beginner, look for a "Generalist" pack. Many brands make excellent entry-level haulers. If you want a better sense of the learning curve, Is Backpacking Hard? Exploring the Nuances of the Adventure.

As you progress, you might look into the Advanced or Pro categories. We see many of our subscribers start with standard gear and move toward specialized ultralight packs as they refine their kits. When you're ready to level up, select a BattlBox plan.

Myth: A "unisex" pack fits everyone perfectly. Fact: Men and women typically have different torso shapes and hip-to-waist ratios. Women-specific packs often feature "S-shaped" shoulder straps to curve around the chest and hip belts angled to fit a wider pelvis.

How to Test a Pack Before You Buy

Never buy a backpack without putting weight in it. A pack that feels great empty will feel completely different with 25 pounds of gear inside. Most specialized outdoor retailers have weighted sandbags or pillows specifically for this purpose. For a step-by-step refresher, read How to Pack Your Backpack for a Backpacking Trip.

1. Load the pack. Put about 20 to 25 pounds in it.
2. Put it on. Loosen all the straps first.
3. Tighten the hip belt. It should be centered on your hip bones.
4. Tighten the shoulder straps. They should wrap over your shoulders without leaving a gap, but they shouldn't be carrying the main weight.
5. Adjust the load lifters and sternum strap.
6. Walk around. Go up and down stairs if possible. Listen for squeaks and feel for any rubbing or "hot spots" on your hips or shoulders.

Organizing Your Gear Inside the Pack

How you pack is just as important as what pack you get. A poorly balanced pack will pull you backward or side-to-side, making every step a chore.

• Bottom Zone: Light, bulky items. This is where your sleeping bag and extra clothes go.
• Middle Zone (Close to Back): Heaviest items. Your food bag, water reservoir, and cook kit should stay close to your spine.
• Middle Zone (Away from Back): Mid-weight items like your tent or extra layers.
• Top Zone: Frequently used items. Rain gear, Adventure Medical Mountain Backpacker Medical Kit, and navigation tools.
• Pockets: Snacks, sunscreen, and EDC tools.

Key Takeaway: Keeping your center of gravity high and close to your back improves balance on technical terrain.

Maintaining Your Gear

A quality backpack is an investment. With proper care, it should last for a decade or more.

• Never machine wash your pack. The agitator can damage the frame and the detergent can strip the waterproof coatings. Use a mild soap, a sponge, and a tub of lukewarm water.
• Dry it completely. After a trip, hang your pack in the shade to dry. Storing a damp pack will lead to mold and the breakdown of the fabric's interior coating.
• Check the zippers. Zippers are usually the first thing to fail. Keep them clean of sand and grit, and use a zipper lubricant if they become difficult to pull.

The BattlBox Mission and Your Next Adventure

Selecting the right pack is the foundation of a successful outdoor experience. Whether you are prepping a go-bag for emergencies or planning a week-long trek through the backcountry, your pack is your lifeline. If you're building for worst-case scenarios, start with the emergency preparedness collection.

Adventure. Delivered. is not just our tagline; it’s our commitment to making sure you have the tools and the confidence to step off the pavement. If you want a bigger-picture view of what belongs in a crisis kit, What Are Bug Out Bags Used For? can help you think through the rest of your system.

Bottom line: The "best" pack is the one that stays out of your way and lets you enjoy the trail—so choose your BattlBox subscription.

FAQ

How do I know if my pack fits correctly?

A correctly fitted pack will have about 80% of its weight resting on your hip bones, with the shoulder straps wrapping comfortably over your shoulders without gaps or heavy pressure. The load lifter straps should sit at a 45-degree angle, and the pack should move with your body rather than swaying or pulling you backward. If you feel excessive strain on your neck or lower back, the torso length or weight distribution is likely incorrect.

Can I use a daypack for a weekend trip?

It is possible if you are a minimalist with ultralight gear, but most daypacks (20L-35L) lack the internal frame and padded hip belt necessary to carry the weight of a tent, sleeping bag, and multiple days of food. Using a pack not designed for heavy loads can lead to muscle strain and back pain. For a standard weekend trip, a 45L to 55L pack is a much safer and more comfortable choice.

What is the difference between men's and women's packs?

Women's packs are specifically engineered for a different anatomical build, featuring shorter torso ranges, narrower shoulder widths, and contoured shoulder straps that curve away from the chest. The hip belts on women-specific models are often canted at a different angle to better fit the flare of a woman’s hips. While many people can use unisex packs, these gender-specific designs often provide a more precise and comfortable fit.

Should I buy an ultralight pack for my first trip?

Generally, no. Ultralight packs are designed for people who have already optimized their gear to be very light and low-volume. These packs often lack a rigid frame and significant padding, meaning they become very uncomfortable if you load them with more than 20 or 25 pounds. For your first trip, a traditional internal frame pack is more forgiving and can comfortably carry the heavier gear often used by beginners.