Tween Techno Messenger School Bag with Adjustable Shoulder Strap Messenger bag in popular Tween style - Black bag with pink, white and gray swirls and stars. Bag Measures: 15 x 13 x 4 Two large storage spaces, pockets for writing utensils, a key ring clip, and an ID holder. Features a mesh pocket for convenient water bottle storage. Adjustable padded shoulder strap for comfort as well as carrying handles for comfortable travel.