The Starter Junior backpack is perfect for young students ages 3 to 6 yrs old. The bag fits a standard A4 folder when placed to the back of the bag. It does not fit a binder. These featherweight, ergonomic backpacks have sturdy form and structure making them comfortable and stylish! The line expands into sling bags, cosmetic bags, pencil cases and more. All bags have little "perforations" on them to allow for customizing with "Nimix". This gives children the superpower of self-expression - initials, characters, and quirky motifs complete the range of Nimix. Size: 14" H x 10" W x 4" D Composition Exterior Material: Eva / Silicone Lining: 100% polyester Recommended Age: 8+ yrs. Recommended Use: School bag for middle and high school. Safe for children. Products are weather-resistant. Wipe Clean. Designed in USA. Made in China. Light plus Nine is on a mission to address posture issues stemming from heavy backpacks; they have designed an entire realm of featherweight bags for children to wear, explore, and customize. Innovation wasnt just the first step of the brand process. They added the fun element of customizing from a large range of Nimix. It is part of every childs self-adorned experience - young minds should think bigger and young backs should stand taller! Kids Light Plus Nine Starter Junior Backpack - Bistro Green