O3USA A Cool Line of Kids Backpacks,Kids Bags, Kids Rucksack, Kids rolling Luggage, Kids Luggage, Kids suitcase, Adult multifunctional Headwear, Kids multifunctional Headwear, Kids Headbands and Accessories. Like the backpacks, the kids luggage features an integrated cooler compartment. O3USA is a new kids line that launched with backpacks last summer for back to school. Parents love the unique and practical aspects of the Kids Luggage and kids backpacks, which include an integrated lunch cooler. hint, no need to buy or tote an extra kids lunch box, and it is perfect for kids travel snacks, mesh padding on the straps and back, and durable construction. Kids will adore the cool and eye-catching kids designs that can fit perfectly with the ever more stylish wardrobe of today's youth. Like the kids backpacks, the kids luggage features an integrated cooler compartment - perfect for snacks on the road or in flight! The luggage is practical for weekend trips and is the perfect kids size.