These backpacks are jammed packed with all the features. Polyester exterior & interior, water resistant, and super easy to wipe clean. Roughly 12x10,” making these the perfect in between toddler pack & backpack size. The backing and straps are cushioned and super comfortable to wear! Each backpack is equipped with a handle, so they’re easy to hang up (great for daycare/preschool), along with a plastic chest clip to keep from falling off the shoulders of your little ones. They have two scrunch elastic pockets on either side of the exterior, one zipper pocket on the front, and an open cushioned pocket on the interior. They also have a small ring on the front to clip a keychain. Straps are adjustable. These backpacks are LOVE!