Zicac Holographic Laser Synthetic Leather Backpack School Bag Travel Casual Daypack Material: holographic laser synthetic leather Backpack color changes with the light Pockets:1 exterior zip ,1 exterior snap, 2 interior slip ,1 interior zip Zipper Closure with top handle ,Comfortable adjustable shoulder straps Capacity: about 12L, holds books, umbrella, pocket money, Ipad, phone, etc Size: 28x12x37cm/11x2.2x14.6 inch (LxWxH)