Which Size Backpack Should I Wear For Backpacking? | Hikers University

Wondering which size backpack should I wear for backpacking? You're not alone. It can be confusing to figure out the right size and fit.

There is no one size fits all answer to which backpack size is best for backpacking and picking the right backpack can be tricky. You need to answer questions like should you go with a small or large backpack? What are the different features to look for when choosing a backpack?

For Multi-day backpacking trips, 60-70 liters is the most popular size. These packs are big enough to hold your essential gear but not so large that they become cumbersome to carry. These packs feature a variety of pockets and compartments to organize your gear and keep track of small items.

While Backpacking can be a great way to see the world and explore new places, it can also be expensive. Thus, before investing in any gear, it’s important to research and figure out what you need. One of the most important pieces of gear is your backpack. The backpack carries all of your gear, but it also plays a role in how comfortable your hike is.

We have compiled this expert guide to help you choose the right backpack for your adventure. Whether you are a beginner or an experienced hiker, we have something for everyone. So, what size backpack should you wear for backpacking? Keep reading to find out.

Table of contents


Is A 40L Backpack Big Enough for Backpacking?

A 40L backpack is a popular size for backpacking, as it is large enough to hold all of the essential gear without being too bulky or difficult to carry. For example, a 40L backpack can easily hold a sleeping bag, tent, extra clothes, food, and water. Additionally, a 40L backpack typically has plenty of pockets and compartments for organizing gear, and some even have space for a hydration bladder.

The main downside of a 40L backpack is that it may not be large enough for extended backpacking trips or for those who like to bring along extra amenities. However, a 40L backpack is a perfect size for an enjoyable and comfortable backpacking adventure for most people.

Is 35L Backpack Big Enough for Backpacking?

Traveling light is the key to enjoying any backpacking trip. A heavy backpack can quickly become a burden, making it difficult to explore all the trails and vistas that the wilderness offers. But how small can you go without sacrificing comfort and convenience? A 35-liter pack strikes the perfect balance between size and functionality for many backpackers. With a 35L pack, you can easily fit all the essential items for a multi-day trek, including a tent, sleeping bag, food, and clothing.

Additionally, 35L packs typically have enough space for additional items like a first-aid kit, map, and camera. However, if you plan to carry a lot of gear or pack extra-large items like a bear canister, you may need to consider a larger pack. The best way to determine the ideal pack size is to experiment with different sizes on shorter trips before embarking on a longer adventure.

How Much Can You Fit in a 20L Backpack?

A 20L backpack is a handy size for carrying everything you need without being too bulky or cumbersome. But just how much can you fit inside? If you're packing for a day hike, you'll likely want to pack some snacks, water, a map, and a first-aid kit. You may also want to bring a jacket, sunscreen, and insect repellent.

For longer hikes or overnight trips, you'll need to add extra clothes, a sleeping bag, and a tent. Of course, the exact contents of your backpack will vary depending on the type of hike you're taking and the weather conditions. But with a little planning, you can easily fit everything you need into a 20L backpack.

How Do I Know My Backpack Size?

With so many different types and sizes of backpacks on the market, it can be not easy to know which one is right for you. The first step is to determine the size of your torso. To do this, measure from the base of your neck to your waistline. Next, consult a size chart to find the corresponding backpack size. Once you have an idea of the right size, it's time to try on some packs.

If possible, visit a store specializing in outdoor gear and ask a salesperson for help. Otherwise, try on as many packs as you can and pay attention to how each one feels. The right backpack should feel comfortable and snug without putting too much pressure on your shoulders or restricting your movement. With a little trial and error, you'll be able to find the perfect backpack for your next adventure.

Is a 45L Backpack Big Enough for Backpacking?

A 45L backpack offers a good balance of space and portability. However, a few things to keep in mind when deciding if a 45L backpack is right for you. First, consider the type of trip you'll be taking. If you're planning on spending extended periods in the backcountry, you'll need enough space to carry all of your gear, including food, shelter, and clothing. On the other hand, if you're only planning on spending a few nights out, you can get away with packing a lighter.

Secondly, think about the climate you'll be hiking in. If you're expecting warm weather, you won't need to pack as many layers of clothing. However, if you're hiking in a cold climate or at high altitudes where the weather can change quickly, you'll need to pack more gear to stay warm and dry.

Finally, consider your personal preferences. Some backpackers prefer to travel light and move quickly, while others prefer to carry more gear and take their time exploring the trail. There's no wrong answer here - it just depends on what you're looking for in a backpacking experience. So, whether you're planning an extended

Is 75L Backpack Too Big?

A 75L backpack is a great option for extended backpacking trips. It has enough room to fit all of your gear, including your sleeping bag, tent, cookware, and food. Plus, the extra space can come in handy for storing extra clothes or gear in an emergency. However, a 75L backpack can be cumbersome, especially if you're not used to trekking with a heavy load.

If you're planning on doing a lot of hiking, it's important to make sure that you're physically fit enough to handle the added weight. Otherwise, you may get tired quickly or even suffer from injuries. Nevertheless, a 75L backpack is a great choice for those looking for maximum storage space on their next backpacking trip.

What is a Good Size Backpacking Bag?

A good-size backpacking bag fits everything you need without being too heavy to carry. It should have enough room for all your clothes, sleeping gear, food, and other essential items. The bag should also be comfortable, with straps that distribute the weight evenly.

Additionally, it is important to choose a durable and weather-resistant bag. Backpacking can be a tough activity, and you don't want your belongings to get damaged or wet. With so many different options on the market, choosing the right backpacking bag can be tricky. But if you keep these factors in mind, you can be sure to find a bag that will suit your needs.

Is 20-30 Liter Backpack Enough for a Day Hike?

A day hike is a hike that can be completed within a single day, and it does not require an overnight stay. When planning a day hike, it is important to pack light, as you will be carrying your belongings on your back for the entire journey. A 20-30 liter backpack is typically large enough to hold everything you need for a day hike, including food, water, extra clothes, and a first-aid kit.

If you plan to hike in warm weather, you may also want to include sunscreen and insect repellent. Of course, the exact contents of your backpack will vary depending on the specific hike you are undertaking. However, as long as you pack wisely, a 20-30 liter backpack should be sufficient for a successful day hike.

Can a 70 Liter Backpack be a Carry-on?

When it comes to packing for a trip, everyone has different preferences. Some people like to travel light, while others prefer to bring everything they might need. But no matter your approach, you probably want to avoid paying checked bag fees if possible. So, can a 70-liter backpack be a carry-on?

The answer depends on the airline. Most airlines have size restrictions for carry-on luggage, and a 70-liter backpack may exceed these limits. However, a few airlines allow larger bags as carry-ons, so it's always worth checking the rules before you book your flight. Additionally, even if an airline does allow a 70-liter backpack as a carry-on, it may need to be placed in the overhead bin rather than under the seat in front of you.

So, if you're planning to bring a large backpack on your next trip, make sure to do your research ahead of time to avoid any surprises at the airport. And who knows, with a little bit of planning, you might be able to save yourself some money in checked bag fees.

What is the Biggest Backpack You Can Carry on an Airplane?

The size of the overhead bin determines the biggest backpack you can carry on an airplane. Most overhead bins are 22 inches wide, 14 inches deep, and 18 inches tall. The largest backpack you can bring on a plane must be smaller than 22x14x18 inches. However, it's important to remember that not all airlines have the same size restrictions, so it's always best to check with your airline before packing your bag.

If you're planning on bringing a large backpack on a plane, make sure to choose one that is lightweight and easy to carry. You'll also want to make sure that it has plenty of compartments and pockets for storing all of your belongings. And finally, don't forget to pack a few snacks and drinks if you get hungry during your flight!


Peter Brooks

Peter Brooks

I’m a hiker, backpacker, and general outdoor enthusiast. I started hiking out of college while working for the National Forest Service, and have been hiking ever since. I’ve been solo hiking and leading hiking groups for two decades and have completed hundreds of small hikes and some majorones such as the Appalachian Train and the Pacific Crest Trail, and hiked on four continents. I’d love to share some of my insight with you.

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