Color: black, gray, blue
Function: double shoulder, single back
Material: fine grain nylon oxford spun composite fabric (water repellent)
Lining: polyester (nylon fabric)
SIZE: HEIGHT 45 * LENGTH 30 * WIDTH 15/CM (NOTE: THE DIFFERENCE OF 1CM IS NORMAL DEPENDING ON THE MEASUREMENT METHOD)
Space structure: front waterproof zipper bag, main layer space contains 2 sandwich bags, left and right side pockets
Capacity index: can store books, documents, notebooks and digital, multiple clothes and daily travel items, etc.