Backpack season is here. Late July through August is the deepest inventory window of the year, which makes this the easiest time to find the right fit and the hardest time to avoid overpaying. Whether you are buying backpacks for school, a laptop commuter bag for work, a daypack for weekend hikes, or a carry-on that clears airline size limits, the decision comes down to four numbers: liter capacity, laptop sleeve size, torso length, and warranty length. Here is what to look for before you buy, where to shop, and which models are worth the money.
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What Backpacks Do and Who Should Buy Them
A backpack is a bag carried on both shoulders by two straps so the load sits along your spine and hips instead of pulling on one side of your body. That single difference is why it beats a tote or a rolling suitcase for anything you carry longer than a few minutes.
Four groups buy most of them. Students need one that survives a school year of concrete drops. Commuters want a slim profile, a padded laptop compartment, and a charging port. Hikers need a hip belt and a frame sized to their torso. Travelers want 35 to 45 liters that clears an airline bin.
Features Worth Paying For in Backpacks
Five specs decide whether a bag works: capacity in liters, laptop sleeve size, torso fit, water resistance, and warranty. Everything else is styling.
| Use case | Capacity | Spec that matters most |
|---|---|---|
| Elementary school | 15 to 18 liters | Loaded weight, not volume |
| High school and college | 25 to 30 liters | 15 or 17 inch laptop sleeve |
| Work commute | 18 to 25 liters | Slim profile, luggage pass-through |
| Day hike | 18 to 28 liters | Padded hip belt, torso length |
| Travel carry-on | 35 to 45 liters | Airline size limits, lockable zippers |
Liter capacity. Volume is stated in liters because these are irregular shapes, and liters describe usable interior space more honestly than inches. A 15-liter model holds a tablet computer, a folder, and lunch. A 30-liter one swallows a week of textbooks.
Laptop sleeve size. Check your machine’s actual width, not just the stated screen size. A sleeve labeled for 15 inches often will not close around a 16-inch MacBook Pro, and that is the most common return reason on commuter bags. Better designs suspend the sleeve above the base so a dropped bag does not slam the laptop into the ground.
Torso length and hip belt. On hiking models, torso length matters more than height. A padded hip belt transfers 70 to 80 percent of the load to your hips, but not on a wrong-length frame. Shoulder-only carry is what turns a hike into a sore neck.
Water resistance. Waterproofing is the coating or laminate that keeps moisture out. Most bags carry only a light DWR finish good for roughly 20 minutes of drizzle; truly waterproof roll-tops cost more and seal at the seams. Bike commuters should buy sealed or carry a rain cover.
Warranty. The most underrated spec here. JanSport covers its bags for life against defects, and Osprey’s All Mighty Guarantee repairs or replaces any bag from any era regardless of who bought it. A $40 bag with a lifetime warranty beats three $20 bags over a decade.
Sizing one correctly takes two minutes:
- Measure your torso from the bony bump at the base of your neck to the top of your hip bones. That number, not your height, sets the frame size.
- Load it with the weight you actually carry and put it on. The bottom should sit at your lower back, not on your rear.
- Tighten the hip belt first, then the shoulder straps, then the sternum strap. Keep the load under 10 to 15 percent of body weight, the range the American Academy of Pediatrics recommends.
When to Replace a Backpack
A well-made bag lasts three to five years of daily school or commuter use, and eight or more with lighter duty. Cheap ones fail in a single semester, usually at the zipper.
Four signs it is done: strap padding compressed flat, a main zipper that separates behind the slider even after a new pull, fraying where the fabric meets the base panel, and any tear in the back panel foam. Only the last one is urgent, because collapsed foam puts book edges against your spine.
You can add years by never machine washing it. Hand wash cold, air dry out of direct sun, and the water-repellent finish survives; one hot cycle strips it. Before replacing anything, check the old warranty. JanSport, Osprey, and L.L. Bean repair defective bags well past the point most owners assume coverage ended, so a blown zipper may cost nothing.
Ordering Backpacks Online: Where and Why
Online is where selection lives. Four retailers cover nearly every price tier and use case.
Amazon
Amazon, the largest online retailer in the United States, carries the widest range anywhere: school bags, travel gear, laptop cases, sling styles, and outdoor equipment from hundreds of brands. Filter by capacity, rating, or a feature such as a USB charging port or a water bottle pocket. Prime delivery typically lands in two days, and review volume is the fastest way to spot a durability problem. Browse the selection on Amazon.
Zappos
Zappos stocks premium labels including The North Face, JanSport, and Herschel Supply Co. Free shipping both ways and a 365-day return window make it the right place to order two sizes and send one back when torso fit is the variable. See their category page.
Overstock
Overstock discounts recognizable brands, usually on last-season colorways. Narrow by volume, brand, or intended use. Worth a look if you want a known name at a lower price and do not need a specific color. Check current pricing.
Lands’ End
Lands’ End builds school and everyday bags that routinely survive multiple school years. Filter by age group, add monogramming, and note that the ClassMate line is the one parents recommend repeatedly for elementary-age kids. Browse their range.
Finding Backpacks Near You: In-Store Options
Trying one on beats guessing, and this is the best in-store window of the year. Back-to-school displays go up in early July and peak through August, when floor space triples and every price tier sits out at once.
Target
Target runs the broadest general selection across kids, adult, and sport categories, priced from roughly $15 to $60. Check the luggage and travel accessories aisle year-round, and the seasonal endcaps near the school supplies section in July and August. View their store listing.
Dick’s Sporting Goods
Dick’s carries the outdoor and athletic names: The North Face, Nike, Columbia, and Osprey. Go here for a hiking daypack or a school bag rated for heavy loads, and have staff check torso fit on the same trip that gets you running shoes. Check their inventory.
L.L. Bean
L.L. Bean is the durability pick, with monogramming on most models and a policy covering manufacturing defects long after purchase. Stores stock a tighter range than the website. See what they carry.
JCPenney
JCPenney leans budget, with kids and adult styles that expand sharply in back-to-school season. Practical if you want cheap without a trip to a sporting goods chain. Browse their listings.
Staples
Staples stocks laptop-friendly styles year-round beside the office supplies and adds a seasonal endcap in summer. Convenient when notebooks and pens are on the same list. Check their category page.
Outside July through September, shelf space shrinks to a single aisle end. Call ahead at smaller locations before driving over.
What Not to Buy: Common Backpack Pitfalls
The costliest mistake is buying on looks, then finding the straps are thin webbing with no padding. Four more to avoid:
Ignoring the weight rating. A bag built for light daily use blows its zippers under textbooks and a laptop. Match the rating to your real load, not your average one.
Trusting the sleeve label. Screen-size labels are approximations. Measure your machine and compare it against the stated sleeve dimensions in inches.
Buying the sub-$15 option. Below that price the zippers are unbranded, the fabric is thin polyester, and the seams are single-stitched. They routinely fail inside one semester.
Skipping the return window. Fit problems only show up under load. Buy from a retailer with a long return policy so you can walk around with your real books, keys, and wallets inside first.
Top Backpacks Worth Buying
These five were chosen on capacity, warranty terms, and long-run review consensus rather than launch-year hype.
Best overall: JanSport SuperBreak Plus. A 26-liter classic with a padded 15-inch laptop compartment, front utility pocket, and a lifetime warranty against defects. Around $40 to $55. Check price on Amazon
Best for travel: Osprey Farpoint 40. A 40-liter carry-on with lockable zippers, a stowable harness, and a mesh back panel. Clears most airline limits. Roughly $185 to $200, with the All Mighty Guarantee. Check price on Amazon
Best budget: Amazon Basics Classic School Backpack. Roomy and no-frills, with a side water bottle pocket and front zip. Fine for younger students at under $25. Thin padding is the tradeoff. Check price on Amazon
Best for laptops: The North Face Borealis. A 28-liter commuter bag with a fleece-lined 15-inch sleeve, FlexVent suspended shoulder straps, and reflective trim. Around $110 to $125. Check price on Amazon
Best for hiking: Deuter Speed Lite 21. A 21-liter lightweight daypack with an Aircontact back system, a real hip belt, and trekking pole loops. Around $110 to $130. Light on organization by design. Check price on Amazon
Write down two numbers first: the liters you need from the table above, and your laptop’s actual width. Take both to a store this month while back-to-school stock peaks, try on two candidates loaded with real weight, then order the winner online if the price is better. For backpacks meant to outlast one school year, weight the warranty over the sticker price.
FAQ: Buying Backpacks
Why are backpacks measured in liters?
Liters measure interior volume, which describes usable space more accurately than height and width do on a soft, irregular shape. Makers calculate it by filling the compartments with beads and measuring displacement. Ratings are not standardized, so one brand’s 30-liter model can hold noticeably more than another’s.
Do backpacks count as a personal item on planes?
Most airlines count a standard bag as a personal item if it fits under the seat, generally about 18 by 14 by 8 inches. Anything 35 liters and up is treated as a carry-on and needs overhead space. Budget carriers enforce gate sizers far more aggressively.
Can you wash a backpack in the washing machine?
Usually not. Machine agitation delaminates back-panel foam and strips the water-repellent coating, and any model with a frame sheet can warp. Empty every pocket, spot clean with cold water and mild soap, scrub the base with a soft brush, and hang it upside down to dry. Never use a dryer.
What is the best backpack brand?
It splits by category. JanSport and Herschel Supply Co. dominate everyday and school use on price and warranty. Osprey and Deuter lead for hiking and travel thanks to adjustable torso systems. The North Face sits between them. At the lowest prices, Amazon Basics and High Sierra are the realistic picks.
When do backpacks go on sale?
The steepest markdowns hit in late August and September as retailers clear back-to-school inventory, with 30 to 50 percent off leftover colorways. Black Friday brings a second round on outdoor and travel models. The tradeoff is selection: shop the clearance window and you take whatever color is left.
About This Guide
Editorial review: wheretobuyguides.com team. Retailer links, capacity specs, and prices last verified July 2026.