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O3 All In One Backpack With Cooler in Preschool size or NEW Full Size 50% Off

O3 is a company founded on principles of creativity, functionality and a funky spirit.  We strive to offer products that are unique, stylish, and, most importantly, cool.  Through our designs we strive to please our customers by incorporating patterns and prints that embody the fun spirit of today’s modern youth (and adults) so that consumers can express themselves freely without loosing the functional aspects of the product.  In fact, most of our designs were created through the suggestions of the little princesses, ballerinas, divas, firemen, racecar drivers and pirates of today’s youngest generation.  They say – why sacrifice function for fashion?

Forget the lunch box!
It's all-in-one here.

Munich School Backpack With Detachable Lunch Cooler

The O3 Munich Backpack With Detachable Lunch Cooler is the perfect solution for elementary / middle school or for general everyday use. The backpack features a detachable cooler that is perfect for lunch or a snack.  The cooler easily detaches from the backpack and features a drink pocket, carry handle, and adjustable straps for easy carrying.  The backpack features a large main compartment featuring a pocket for up to 15” laptops and additional organization pockets. The front compartment features an organizer with pockets for supplies, a zip pocket, pen/pencil slots and a key clip.  The front of the backpack also features a pocket for easy to access storage.  Drinks can be easily stored in the side drink pocket.  For ultimate comfort, the back features a padded breathable mesh lumbar section and the straps are constructed with the same padded breathable mesh and feature a chest strap. Suggested for ages 5 and up.

  • Features detachable lunch cooler with a carry handle, long adjustable straps, and an exterior mesh pocket for drinks
  • Adjustable breathable mesh padded straps and breathable padded mesh lumbar section on back for ultimate comfort and temperature control
  • Interior organizer pockets and roomy main compartment large enough to fit a laptop, books and/or binder
  • Side drink pouch
  • Adjustable chest strap
  • Suggested for ages 5 and up
  • Backpack Measurements: 7” deep x 17” tall x 12” wide; Cooler Measurements: 8.5” wide x 9” tall x 2” deep

Bling Rhinestone StarTurquoise ButterflyCamo
SkullsBlack with BlackBlack with Pink
Black with RedBlack with GreenBlack with Purple

Kids Pre-School All-In-One Backpack With Cooler

The O3 kids backpacks boast a blend of creativity, functionality and style.  All kids backpacks feature a main compartment that is large enough to fit school supplies, including a standard size school folder. Kids can also stay organized with the inner organizer pockets. And because kids already have enough to carry to school, the front pocket is a lunch cooler so they don't have to carry an extra lunch tote!

Because we know how important a comfortable backpack is, the straps and back feature padded mesh support for a much more comfortable experience.

  • Measurements: 14.5" tall x 10" wide x 5.5" deep (37 x 25 x 14 cm)
  • Front pocket is a lunch cooler, so no need to tote an extra lunch bag!
  • Inner organizer pockets for pencils and other supplies
  • Padded, adjustable shoulder straps  
  • Ergonomic, breathable mesh padding on back and shoulder straps for extra comfort
  • Side drink pocket
  • Additional front pocket for quick and easy storage
  • Ages 3-7

Meets or exceeds applicable CPSIA & FDA standards.

Bling Rhinestone Angel WingsBling Rhinestone StarTurquoise Butterfly
Camo AirplaneGreen FootballTie Dye


  • Items will ship on or before August 29th
  • To United States & Canada
  • Starting at $ 5.56 depending on location
  • Free Local pickup in Gilbert AZ
  1. Tie Dye Preschool Backpack
    Tie Dye Preschool Backpack
    Reg. $29.99
    Sold Out