WITZMAN Men Retro Canvas Backpack Travel Rucksack Casual Duffel Bag Premium quality cotton canvas+ PU Imported Featuring versatile carrying options,Size: 23 x 9.5 x 12.5 inches 5 Front pockets,a side pocket, a main pocket with a laptop computer window inside;a inside big pocket can put wallet, cellphone,ect. This is a removable shoulder strap inside the main pocket, you also carry this bag as a cross body bag, and The main pocket also have a side zipper for your easy packing once you cross pack this back This bag also can use as a shoulder backpack.:The shoulder strap can be hiden if you don't like and can put into the secret pocket. Material: Premium quality cotton canvas+ PU The Canvas bag has 2 sizes: 20 inch and 23 inch; This Nylon bag has 1 size: 20 inch; This PU bag has 2 sizes: 20 inch and 23 inch; Perfect for outdoor, mountaineering, hiking, camping Great for short trip, weekend, overnight, excursion, long journey Perfect for college, casual, everyday use Great for work, office 5 x front pockets for pens, notebooks, and other small items. 1 x side pocket, perfect for a water bottle, umbrella; 1 x main compartment that has enough room for your 16 inch Laptop, cell phones, iPad, A4 binder, books, notebooks, clothes, shoes, passport, pen, keys, wallet, umbrella, water bottle and more. 1 x laptop pocket that can hold a laptop up to 15.6 inches; 1 x open pocket for up to 12.9 inch iPad, notebooks, etc.