Book Bag alder convertible bag - With a permanent handle and an adjustable strap, this black and brown convertible bag is versatile and chic. 100% Polyester 13.5L x 4W x 10H 3 handle drop Zipper enclosure for main pouch, with magnetic clasps for overlay flap 2 inside pouches, 1 inside pocket with zipper 1 outside pouch, 1 outside