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Is 25 liters a big backpack?

24-26 liters is considered a medium-size backpack and is probably the most popular bag capacity out there. It's great for taking to school or work, depending on the styling, and can also be a great travel pack for taking on a plane. Here is a potential packing list for that size depending on where you're headed.



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If you need a bit more space than what a small backpack offers but don't want to lug around a large pack, go for a medium size. These have a capacity of 25 to 40 liters, which is just enough room for a change of clothes, a laptop, and these must-have travel accessories for every destination.

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A: The L stands for Liters. So when you see a 25L backpack, that means the capacity of the main pouch is 25 liters.

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LARGE BACKPACKS (> 40L) They make for great travel bags when you don't want to check in luggage. Even if you're a heavy packer, you should be able to take a 45L pack away for a weekend. A light packer could easily do with a bag like this for a week.

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A backpack with a capacity of around 20-30 liters should be sufficient for 11th and 12th grade students. This size can accommodate textbooks, notebooks, a laptop or tablet, and other necessary school supplies.

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For middle schoolers, Backpacks designed for 11 – 14-year-olds should measure 18 to 20 inches in length with approximately 16-inch widths spanning up to 8-inch depths. Depending on which grade they attend and how many accessories they plan on taking along with them, having a couple of options between 25-35L is ideal.

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In general, a backpack is considered a personal item if it fits under the seat in front of you. This means that the backpack must be no larger than 22 inches in length, 14 inches in width, and 9 inches in height. If the backpack is larger than this, it will be considered luggage and must be checked.

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As a general rule of thumb, anything smaller than the dimensions of a carry-on can be considered a personal item. However, every airline has different restrictions for size. In most cases, your backpack should be no more than 18 x 14 x 8 inches.

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24-26 liters is considered a medium-size backpack and is probably the most popular bag capacity out there. It's great for taking to school or work, depending on the styling, and can also be a great travel pack for taking on a plane.

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21–35 liters: This is the sweet spot for most hiking and travel daypacks. There's enough capacity to hold food, clothing and some extras, like a camera and a book. 36–50 liters: These larger packs are ideal for trips that require additional clothing and gear, such as climbing, mountaineering or non-summer hiking.

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What happens if your backpack is too big? An overweight backpack causes the body to compensate for the extra weight. If you lean forward to compensate, it reduces your balance making it easier to fall. The extra weight can distort the natural curve of the middle and lower back, causing muscle strain.

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Above all else, the best backpack for you is the one that fits your body the best. One of the keys to finding that right backpack is to get one that is the correct size (e.g., small, medium, large). Your torso length—not your height—is the key measurement.

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We suggest looking for a roomy bag with plenty of organizational compartments, including a dedicated laptop sleeve (we've also got cool laptop backpacks if you're looking for some). Wide, cushioned straps and back panel padding can help distribute the weight evenly and provide ample back support.

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No matter how well-designed the backpack, less weight is always better. Use the bathroom scale to check that a pack isn't over 10% to 20% of your child's body weight. For example, a child who weighs 80 pounds shouldn't carry a backpack that weighs more than 8 to 16 pounds.

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