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How to buy a backpack


In the same way a pair of too-tight hiking boots can ruin your day on the trail, an ill-fitting backpack can easily turn your fun trek into a nightmare march. But it doesn’t have to be that way.

The Gear Guy is currently researching new models and writing an update to this article. Watch for his updated tips and reviews in the April 2017 issue of Boys’ Life.

Backpacks come in many different shapes and sizes with tons of adjustability to fit just about any type of backpacker. The trick is finding the right pack for your body and the type of backpacking you have planned.

Your Gear Guy is here to help get you on the trail and easily shouldering that load.


To pick a pack that fits you correctly, first measure your torso length. Have a parent use a soft seamstress tape to measure the distance from the base of your neck straight down to your hipbone. Now find a pack that fits that sizing. Most youth backpacks have adjustable harnesses that accommodate a range of torso lengths.


The next measurement you need is your waist size. About 70 to 80 percent of the weight of your pack will be supported by your hips, so getting a hip belt that fits is key. Most hip belts offer a lot of adjustment, and some packs provide removable/swappable hip belts so you can size appropriately.

Deuter Fox 40 and Outdoor Products Dragonfly

Deuter Fox 40: ($109, Capacity: 40 liters/2,440 cu. in. Weight: 2 lbs. 14 oz. Adjusts to fit torso range of 11″-18″. The Fox 30 ($99) fits smaller guys. Outdoor Products Dragonfly External Frame Pack: ($67, Capacity: 45 liters/2,780; Weight: 3 lbs. 10 oz. Adjusts to fit torso range of 15″-18″.


There are two basic types of backpacks: External frame packs use a metal framework on the outside to support the load, while internal frame packs have their support structure hidden inside the pack like a skeleton.

Internal frame packs are more formfitting, bringing the load closer to your body for more stability and better performance on tight trails.

External frame packs are cheaper and provide better airflow between your body and the pack, while also offering more flexibility for packing bulky items.

When choosing between internal and external frame packs, make sure to consider the size of your sleeping bag. You might buy an internal frame backpack only to get home and realize there’s no way your sleeping bag will fit inside. If you have a lightweight, compressible sleeping bag, it should fit well in most internal packs, but if you have a big, bulky sleeping bag and won’t be getting a new one anytime soon, consider an external frame pack. It’ll give you plenty of room for strapping on a large sleeping bag.

Gregory Wanter 50 and Kelty Yukon 48

Gregory Wander 50: ($179, Capacity: 50 liters/3,051 cu. in. Weight: 3 lbs. 6 oz. Adjusts to fit torso range of 13″-18″. The Wander 70 ($199) fits larger guys. Kelty Yukon 48: ($170, Capacity: 48 liters/2,900 cu. in. Weight: 4 lbs. 13 oz. Adjusts to fit torso range of 13″-19″.


When it comes to backpacks, bigger is not always better. The amount of gear a pack can hold is measured in either liters or cubic inches. Your pack’s carrying capacity should mirror the type of trip you’re planning, whether it’s a simple overnighter, a full-on seven-day backpacking trip or something in between.

An internal frame pack with a capacity of about 40 to 60 liters would be a versatile size for most guys and perfect for a multiday trip. Of course, the smaller you are, the smaller the bag you should carry, so a 35- to 50-liter pack might be fine for you. You can also get by with a lower-capacity external frame pack since there’s lots of extra space to strap on a sleeping bag and pad.

Remember, just because you have space left over doesn’t mean you should fill your pack to the brim. Keep your load within 20 to 30 percent of your bodyweight. Carry just the essentials and your pack will be much lighter, you’ll use less energy getting down the trail and you’ll probably have a lot more fun, too!


They’re nice but not necessary. Comfort and fit are most important. Beyond that, look for a pack with compression straps that help keep your load from flopping around when the pack isn’t filled up. Some packs are top-loading only while others have side zips that let you access your stuff from several places. You’ll also find bells and whistles like built-in sleeves for hydration packs and lots of exterior organization pockets for easy access to what you need on the trail.


Ask around to see if friends have a backpack you can borrow. This will help you get a feel for what type of pack you want to buy and how it should fit. Some outdoor shops even rent backpacks, so you can try before you buy.

Osprey ACE 38 and Mountainsmith Youth Pursuit

Osprey ACE 38: ($140, Capacity: 38 liters/2,319 cu. in. Weight: 2 lbs. 6 oz. Adjusts to fit torso range of 11″-15″. The ACE 50 ($160) fits larger guys. Mountainsmith Youth Pursuit: ($140, Capacity: 45 liters/2,746 cu. in. Weight: 3 lbs. 6 oz. Adjusts to fit torso range of 13″-17″.


Before you go pack shopping, set a budget. Sure, you’ll see lots of tricked-out big brand-name backpacks in the $400-plus range, but you certainly don’t need to spend that much. The $150-$200 range will get you a nice pack that should last for several years or more.


Nothing beats a Scout shop or outdoor specialty store with knowledgeable sales people who can help with fit. Try on several packs, have them adjusted appropriately, then fill them up with gear and wear them around the shop for 15 to 20 minutes. The key is to simulate the kind of weight you’ll be carrying. So fill up the pack with 20 to 30 pounds of tents and climbing ropes from the store or bring your own gear. While buying online can save you some cash, you won’t be able to try out the pack before you buy it.

L.L. Bean Youth White Mountain Pack

L.L. Bean Youth White Mountain Pack: ($159, Capacity: 50 liters/3,051 cu. in. Weight: 4 lbs. 11 oz. Adjusts to fit torso range of 14″-16″.

REI Passage 65

REI Passage 65: ($159, Capacity: 65 liters/3,967 cu. in. Weight: 4 lbs. 4 oz. Adjusts to fit torso range of 15″-19″. The Passage 38 ($100) fits smaller guys.

All prices are MSRP — manufacturer’s suggested retail price. You can often find better deals in stores or online.

20 Comments on How to buy a backpack

  1. im a new scout so what do i need

  2. Nice

  3. outdoorwoman17 // March 1, 2016 at 5:58 pm // Reply

    Hi! I’m looking for a really sturdy backpack. I want to start backpacking for at least three days (hopefully more!). I’m around 5’4 and I need a pack that will be able to hold my tent, sleeping bag/pad and cooking gear and the rest of my supplies. IS THERE A REALLY DURABLE PACK OUT THERE FOR LESS THAN $200?

  4. Name Of Nicks // February 5, 2016 at 9:01 pm // Reply

    I’m 4,7 ish what is a good pack

  5. I’m about 5 ft2 and need a knew pack to start Boy Scouts. I’m about 95-100 pounds and I would prefer an internal framed pack. I live in New Hampshire, and there is rugged terrain and snow. Does anyone have a suggestion for a pack that’s under 180 that can stand these conditions and hold lots of gear?

  6. Using terms like “smaller guys and “larger guys” in your articled is not very helpful. How small is “smaller” and how large is “larger”? Since scouts’ sizes can range between a small 7 year-old and 6-foot tall teen I have no idea where my tall 10 year-old’s size falls along your two-category spectrum.

    • Matt — Torso size, as described in the article, is the most important measure. If you measure your son, it will give you an idea which packs listed in the article would fit him. I think the term “smaller guys” you are referring to is in the description of the REI packs; I’ve looked at those packs for my son as well, and if you look at the torso length specs at REI, you’ll see what they mean. The Passage 38 would probably fit most boys down through Cub Scout ages, while most boys 11 -18 would fit the 65.

  7. I need a backpack for a 4′ 5” person, any suggestions?

  8. SCOUTER HIKER // March 24, 2015 at 2:10 pm // Reply

    I was looking at an osprey under at 190$, but then I found the Back Diamond epic 45 at 123$, small, i am 5 foot 6 and am looking for a pack to last 3 to even a week hiking. Very rugged terrain. Any suggestions?

    • I have an osprey kestrel 48 that works great and I’ve held gear for 8 days in it and I’m gonna use it at philmont

      • i would go with a kelty red cloud
        if your a smaller frame you can even go with womens sizes.
        but kelty or gregory are the best in my opinion.

        osprey are so expensive and i feel they dont hold up!

  9. don’t forget about frameless packs they are a little bit hard to pack though because you have to do it precisely

  10. I bought a really good quality backpack at a thrift store for $20. It was really lightly used. Just shop at a thrift store and save a TON of money.

  11. I’m looking for a good pack for a younger scout that would fit for someone five foot three and is very light. I’m looking for something under $150

  12. I prefer using day packs without a any frame in them at all for multi day backpacking trips . I like the way it feels on my back and shoulders

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