Time to reverse that old chant -- during the dog days of August, when families start their back-to-school shopping, "no more pencils, no more books" makes way for "brand-new pencils, brand-new books." And, of course, kids need something to keep all those pencils and books in.
Which often means a brand-new backpack.
Here are some backpack suggestions for every age.
Wonder Woman Backpack
The DC Comics Wonder Woman Backpack comes with a detachable cape. It has two compartments, padded adjustable reflective shoulder straps, side pockets and a zipper closure ($14.99 at toysrus.com)
Bubble backpacks from Madpax can be purchased in 12 different pattern possibilities (pictured: Monsters on Grrray), as well as three sizes. $39.50-$90 at madpax.com
Under Armour tote
The Under Armour tote features an insulated design, inner mesh pockets, zippered pockets and an adjustable rubber handle; $27.99 at kohls.com
JanSport Big Student Backpack
Available in 36 designs (featured: skeleton), this 17.5-inch JanSport Big Student Backpack features two main compartments, an additional front pocket and a padded back. $64 at kohls.com.
With the wooden star from the "Guardians of the Galaxy" film, cartoon and movie series smiling on the back, this Groot-inspired, 17.5-inch pack also comes equipped with padded straps, a main compartment with zip closure, an exterior zip compartment and a top carry handle; $69.95 at disneystore.com.
Astronauts-to-be will love this jetpack-inspired backpack. It features two nozzles with strips of fabric fire that move as your child walks, a large interior, rear pockets and more; $50 at uncommongoods.com.
Emoji "Heart Eyes" Backpack
This 16-inch backpack has a zippered pocket, side mesh pockets and a locker loop, as well as lots of emoji artwork; $14.99 at toysrus.com.
Beat Bugs backpack
This backpack features characters from Netflix's popular series "Beat Bugs." It features a front zip pocket and side mesh pockets for extra storage. It also features adjustable straps, padded shoulders and plays music from the show; $15.99 at target.com.
MadPax Spiketus-Rex (abracadabra)
With a range of several possible patterns and colors (pictured: "abracadabra"), the "Spiketus-Rex" also sports "spikes" as décor jutting out in several directions, and is available in three sizes; $30-$65.50 at madpax.com.
Top Trenz 'Moji-Nation Backpack
This pack from the Bay Shore-based company Top Trenz has five zipper compartments, a netted side pocket and a removable gummy bear-scented pouch; $40 at toptrenz.com.
JanSport Big Student Backpack
Available in 36 designs (featured: skeleton), this 17.5-inch pack features two main compartments, an additional front pocket and a padded back; $64 at kohls.com.
Sydney Paige Sessler backpacks
Available in six colors (pictured: black), this 13-inch pack has both a main pocket and a front accessory pocket, as well as a reinforced bottom and padded straps; $50 at sydneypaigeinc.com.
Ferguson Fox Zoo Little Kid Backpack
This 11-inch backpack has an insulated snack pouch, mesh bottle pocket, padded, adjustable straps, an easy-to-clean lining and an inner write-on nametag; $20 at skiphop.com.
Animal Jam Backpack
Smiling faces from National Geographic's virtual world adorn this 16-inch pack that also comes equipped with two mesh side pockets and padded shoulder straps; $14.99 at toysrus.com.
Mickey Mouse junior backpack
Fabric-covered "Mickey ears" are the most unique part of this item's decor, a 12-inch junior-size backpack with a double-pull zip-top main compartment, two mesh exterior side pockets with elastic bands, a Mouse icon zipper pull and padded straps; $18.95 at disneystore.com.
MadPax Bubble (“Monsters on Grrray”)
"Bubble" backpacks can be purchased in 12 different pattern possibilities (pictured: "Monsters on Grrray"), as well as three sizes; $39.50-$90 at madpax.com.
Dax Dalmatian Zoo Little Kid Backpack
Featuring padded, adjustable straps and an easy-clean lining, this 11-inch backpack also features an insulated snack pouch, mesh bottle pocket and an inner write-on nametag; $20 at skiphop.com.
Sydney Paige Guidi laptop rucksacks
A canvas bag with metal zippers and leather details, the interior is an easy-clean polyester. Aside from its main compartment (with drawstring and magnetic closure), the backpack also features a padded, fleece-lined laptop sleeve and padded straps; $95 at sydneypaigeinc.com.
JanSport High Stakes Backpack
Offered in 17 possible designs (featured: black white mountain), this 16.7-inch pack has padded, adjustable straps, a main compartment and a front utility pocket; $56 at kohls.com.
Jurassic World Backpack (grey)
The pack features adjustable reflective shoulder straps, mesh side pockets and a zipper closure, as well as art inspired by the film "Jurassic World;" $14.99 at toysrus.com.
Avengers Backpack (Hulk)
This 16-inch Hulk-faced pack could prove to be a "smash" for its owner, with two double-zip compartments, two mesh exterior side pockets, four fabric zipper pulls, and can match with the Disney Store "Avengers" Lunch Tote (sold separately); $24.95 at disneystore.com.
MadPax Blok (“Heavy Metal”)
With 13 different patterns and colors from which to choose (pictured: "Heavy Metal, Milky Way"), as well as three sizes; $64-$105 at madpax.com.
Candie's Tiffany Backpack (“Camo Multi”)
Available for purchase in three designs (featured: "Camo Multi"), this 19-inch pack has a top loop, and aside from its main compartment the pack also features a zip pocket and two slip pockets; $60 at kohls.com.
Elena of Avalor backpack
The animated star of the Disney Channel program by the same name adorns this 17-inch rucksack in border-stitched, raised-screen art fashion. Featuring a main compartment with a double zip-top closure, mesh interior accessory pocket, three pen holders plus an additional pocket, fabric zipper pulls and padded straps, it also matches with the Disney Store's Elena lunch tote (sold separately); $24.95 at disneystore.com.
London Leopard Zoo Little Kid Backpack
Sporting a mesh bottle pocket and an inner write-on nametag, this 11-inch pack also offers adjustable, padded straps, an easy-clean lining and an insulated snack pouch; $20 at skiphop.com.
Five Nights At Freddy's Backpack
Featuring characters from "Five Night's At Freddy's," this 16-inch pack has a padded back, padded straps and two mesh pockets on the sides; $14.99 at toysrus.com.
Featuring Anna and Elsa art, this 16-inch backpack also sports vinyl zipper pulls, two mesh exterior side pockets, padded straps and a detachable furry ball ornament; $24.95 at disneystore.com.
Power Rangers "It's Morphin Time!" Backpack
This 15-inch pack has artwork inspired by the Power Rangers, as well as padded and adjustable straps; $4.99 at toysrus.com.
Fans of Marvel's friendly neighborhood Spider-Man may enjoy this 16-inch pack with the character's mask on the sides and back. Offering a double-zip main compartment, full-size zip front pocket, fabric zipper pulls, mesh interior accessory pocket, three pen holders and additional pocket, it can also match with the Disney Store Spider-Man Lunch Tote (sold separately); $24.95 at disneystore.com.
My Little Pony "Pony Pals" Backpack
Fluttershy, Pinkie Pie, Rarity, Twilight Sparkle and Rainbow Dash are represented, and the pack features adjustable and padded straps; $4.99 at toysrus.com.
Disney Tsum Tsum "All About The Ears" Backpack
The all-over print sports several Tsum Tsum versions of familiar faces from the World of Disney, but the decor also includes a glitter PVC bow, while the 16-inch pack features padded straps and top corner ears; $14.99 at toysrus.com.
Paw Patrol "Here to Help" Backpack
Chase, Marshall, Rubble, Skye, Rocky and Zuma all appear on this 15-inch backpack with padded and adjustable straps; $4.99 at toysrus.com.
Disney Pixar Cars "Speed Buddies #2" Backpack
"Cars" characters Lightning McQueen, Cruz and Jackson Storm star on this item, a 15-inch backpack with adjustable and padded straps; $4.99 at toysrus.com.
Star Wars backpack
A front-zippered compartment, padded straps, double-zip main compartment and accessory loop make up the body of 15-inch pack--but for fans of the Star Wars saga, the decor should be a hit with decals including the Millennium Falcon, an X-Wing fighter, and a lightsaber, as well as droids R2-D2 and BB-8; $24.95 at disneystore.com.
Marvel Falcon Wings Backpack
This Marvel backpack features removable wings. It also features a sunglasses compartment, a zippered stash pocket, mesh back padding, adjustable straps, Laptop compartment and more; $74.99 at thinkgeek.com.
'Star Wars: The Force Awakens' backpacks
Pop culture always finds its way into school supplies, and the “Star Wars: The Force Awakens” blockbuster has spawned a variety of “Star Wars” backpacks, including the BB8 Backpack with LED Lights & Sounds, right. $19.99 exclusively at Target and target.com.
Bixbee Fairy Flyer
Preschoolers want backpacks, too, and this one is made for ages 3 to 6. The Bixbee Fairy Flyer has horizontal butterfly wings with LED lights that flash on and off. Comes in shades of pink and purple; $43.99 at bixbee.com.
Minecraft continues to be super popular among young gamers — and this Minecraft backpack announces their devotion to the video phenomenon. $29.99 exclusively at Target and target.com.
PBTeen Ombre Backpack
New from PBteen is the Gear-Up Ombre Backpack for $49.50. It takes the ombre hairstyle and brings it to a backpack that includes a place for headphone wires. Can be monogrammed. Available at PBteen stores and online at pbteen.com
Tasty Print backpacks
This backpack smells great -- the Tasty Print scented line of backpacks from Bay Shore-based Top Trenz gives off a whiff of fruits such as strawberry or grape. "They're not overpowering. You have to put your nose to it to smell it," says company vice president Jamie Glassberg, "It's like a scratch-and-sniff." $40 at toptrenz.com.
Five Star Big Mouth backpack
The Five Star Big Mouth Backpack has a large main compartment that opens extremely wide to access everything inside the bag, even when it is hanging in a locker. A padded sleeve secures and protects laptops. Available for $34.99 and up depending on retailer at Target, Staples, Office Depot/OfficeMax, Amazon and meadfivestar.com.
Scooter fans may like this scooter-friendly backpack. It has sleeves, Velcro and straps so it can be mounted on a scooter. This year's version has a third pocket for a laptop; $79.95 at thevaultproscooters.com.
L.L. Bean Tech Tote
The L.L. Bean Tech Tote carrying case can be combined with a coordinated L.L. Bean Deluxe Bookpack — the Tech Tote is sized to slide into the backpack. The tote holds a laptop up to 15 inches plus a phone and tablet. It can also be carried on its own by its top handle. The Tech Tote comes in a variety of prints and solids, and is $29.95; the Bookpack is $39.95. Both are available at llbean.com.
MadPax 3-D style backpack
MadPax Backpacks teams up with the Disney-owned franchise Marvel Comics to combine MadPax's 3-D style with superhero icons. The Spider-Man backpack has a spider relief on it and comes in black or red; the comic book backpack has comic images in MadPax Blok style. $84.99 at thinkgeek.com.
Marvel Comic Close Up Spider-Man backpack
This bag features a vintage Spider-Man on the front, a large zippered main compartment, interior pocket, adjustable straps and more; $31.49 at overstock.com.
Big Apple Buddies Lunch Backpack
From Built comes the brand-new Big Apple Buddies Lunch Backpacks line. Each backpack is insulated, has adjustable shoulder straps, is supposed to wipe clean inside and comes with an interior name tag. There are four characters. $19.99-$24.99 at builtny.com
Worried about separation anxiety when your child goes off to full-day kindergarten? The PetSac may help. It's a stuffed animal that turns into a backpack -- the animal's back unzips to reveal the backpack stored within; $9.99-$81.83 at walmart.com.
Sydney Paige backpacks
For every Sydney Paige backpack sold, another one is filled with school supplies and donated to a U.S. child in need. Styles include Little Learners, Young Explorers and World Changers. Pictured is the Valencia model with the Blue Tents design; $55 at sydneypaigeinc.com.
Skip Hop's Zoo Packs
The Unicorn and Cow are the newest additions to Skip Hop's Zoo line of animal backpacks for the littlest ones; $20 at Babies R Us, Buy Buy Baby and Target.
Milkdot Kawaii Pac Mini Backpack
Inspired by Asian pop culture for their obsession with cuteness, this mini backpack features a padded back panel, adjustable shoulder straps and comes in a variety of colors; $29.99 at milkdot.com.