Backpack season just flipped. Through July and August stores stack every price tier on the floor; by mid September the display shrinks to one aisle end and what is left gets marked down. Thinner selection, better prices. Whether you are buying backpacks for school, a commuter bag, a daypack for weekend hikes, or a carry-on that clears airline limits, four numbers decide it: liter capacity, laptop sleeve size, torso length, and warranty. Here is what to check before you buy and where to shop now.
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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 one side of your body. That is the whole advantage over a tote, a sling, or a rolling suitcase.
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 sometimes a charge port. Hikers need a hip belt and a frame matched to their torso. Travelers want 35 to 45 liters of capacity that clears an airline bin.
Carrying only a phone, keys, and a wallet? A fanny pack handles those essentials without the bulk.
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. The rest 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 soft, irregular shapes; liters describe usable interior space more honestly than height and width. A 15-liter model holds a tablet computer, a folder, and lunch.
Laptop sleeve size. Check your machine’s actual width, not the stated screen size. A sleeve labeled 15 inches will not always close around a 16-inch MacBook Pro. Better designs suspend the sleeve above the base panel, away from a drop.
Torso length and hip belt. On hiking models, torso length matters more than height. A padded hip belt shifts most of the weight onto your hips, but only on a correctly sized frame.
Water resistance. Waterproofing is the coating or laminate that keeps moisture out. Most everyday bags carry a light DWR finish that sheds drizzle and gives up in real rain. Bike commuters should buy a waterproof roll-top or pack a rain cover.
Warranty. The most underrated spec here. JanSport covers its bags for life against defects, Osprey’s All Mighty Guarantee repairs any Osprey pack from any era, and L.L. Bean and Fjallraven publish defect coverage of their own. A $40 bag you can get repaired beats three $20 bags.
Size one correctly in three steps:
- 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. 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-built everyday bag runs three to five years of daily school or commuter duty, longer under lighter loads. Cheap ones fail at a zipper first, the part doing the most work.
Four signs it is finished: strap padding compressed flat, a main zipper that separates behind the slider, fraying where the fabric meets the base panel, and any tear in the back panel foam. Only the last is urgent: collapsed foam puts book edges against your spine.
Never machine wash it. Hand wash cold, air dry out of direct sun, and the water-repellent finish survives; one hot cycle strips it. Check the old warranty first. JanSport, Osprey, and L.L. Bean repair defective bags long after most owners assume coverage ended.
Ordering Backpacks Online: Where and Why
Online is where selection lives, and in September the leftover colorways get discounted. Start with these two.
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 rating or by a feature such as a USB charging port or a water bottle pocket. Its best sellers list is a decent shortcut, and review volume flags durability problems early. Browse the selection on Amazon.
Zappos
Zappos stocks premium labels including The North Face, JanSport, and Herschel Supply Co. Its published policy is free shipping both ways and a 365-day return window, so order two sizes when torso fit is the variable. See their category page.
Past those two: Overstock discounts recognizable brands, Lands’ End adds monogramming to its school lines, and REI Co-op is the specialist for hiking and travel backpacks, with real torso sizing, frames sized for a woman rather than scaled-down unisex, and Osprey, Gregory, Deuter, Cotopaxi, and Patagonia on one site. Backcountry covers the same tier when a model sells out, and our guide to JanSport bags covers buying direct.
Finding Backpacks Near You: In-Store Options
Trying one on beats guessing, and loaded weight is the only honest test. Back-to-school floor space peaked in August and is clearing now, so what remains is cheap and picked over.
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 summer. 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; it pairs with a trip for running shoes. Academy Sports covers similar ground across the South. Check their inventory.
Also worth a walk-in: L.L. Bean, the durability pick with monogramming and long-running defect coverage (see our L.L. Bean shopping guide); JCPenney for budget styles; Staples and Office Depot for commuter bags; Walmart for the lowest everyday price; Kohl’s and Nordstrom for fashion labels. Call ahead at smaller locations; off-season stock varies.
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 plus a laptop. Match the rating to your real load, not your average.
Trusting the sleeve label. Screen-size labels are approximations. Measure your machine and compare it against the stated sleeve dimensions in inches before you order.
Chasing a marketplace bargain on a designer name. Fjallraven Kanken and Herschel styles are heavily counterfeited, and third-party listings far under retail are the usual source. Buy from the brand, an authorized seller, or a store you can walk into.
Skipping the return window. Fit problems only show up under load. Order 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 picked on volume, published warranty terms, and long-run review consensus rather than launch-year hype. Prices are ranges checked in September 2026.
Best overall: JanSport SuperBreak Plus. A 26-liter classic with a padded 15-inch laptop compartment, front utility pocket, and lifetime defect coverage. 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 that clears most airline limits. Roughly $185 to $200. Check price on Amazon
Best budget: Amazon Basics Classic School Backpack. Roomy and no-frills, with a side water bottle pocket and a 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 a ventilated 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 before you shop: the liters you need from the table above, and your laptop’s actual width. Take both to a store while the clearance racks are full, try two candidates loaded with real weight, then order the winner online if the price beats the shelf. For backpacks meant to outlast a school year, weight the warranty over the sticker price.
FAQ: Buying Backpacks
Why are backpacks measured in liters?
Liters describe interior volume, a more accurate measure of usable space than height and width on a soft, irregular shape. Ratings are not standardized, so one company’s 30-liter model can hold noticeably more than another’s. Compare against a bag you already own.
Does a backpack count as a personal item or a carry-on?
Most airlines treat it as a personal item if it fits under the seat, generally around 18 by 14 by 8 inches. Anything 35 liters and up is treated as a carry-on. Budget carriers enforce gate sizers aggressively, and a stuffed 25-liter bag can fail a sizer an empty one passes.
Do you have to take your laptop out at airport security?
With a standard bag, yes, unless you are in TSA PreCheck. Some travel models use a compartment that opens flat to 180 degrees so the machine is screened in place. TSA officers still make the final call, so treat that layout as a convenience, not a guarantee.
Can you put a backpack in the washing machine?
Usually not. Agitation delaminates back-panel foam and strips the water-repellent coating, and any model with an internal frame sheet can warp. Empty every pocket, spot clean with cold water and mild soap, scrub the base, and hang it upside down. Never use a dryer.
When are backpacks cheapest?
Late August into September, once retailers clear back-to-school inventory. Black Friday brings a second round on outdoor and travel models. The tradeoff is selection: shop the clearance window and you take whatever size and color is left.
About This Guide
Editorial review: wheretobuyguides.com team. Retailer links, specs, and prices last verified September 2026.