Back Luggage Strap & Chest Strap: Back U-shaped ventilation design help for the air convection. Adjustable shoulder straps with padding help relieve the stress from your shoulder. A luggage strap allows backpack fit on luggage/suitcase, slide over the luggage upright handle tube for easier carrying;The Adjustable chest strap bring the shoulder straps in tighter to the chest. Also, the college backpack with a sturdy rugged handle with steel cable on the top for carrying. Extra Large & Gaming Laptop Backpack--Exterior size of the extra large business travel backpack:22*17*10 inch.Capacity:60L.Multi compartments give excellent protection for 2 laptop computers and tablet.Fits most 19,18.4,18,17.3,17,15.6,15 inch laptops Large Capacity : Largest main compartment hold for 3-4 days travel clothing.Many hidden pockets can accommodate lots of travel accessories,stationery,notebook, personal toiletries,side Zipper pocket for Easy access essentials, A hole for headphone outside gives easy access to Earphone usage. Heavy duty XL backpack made from quality polyester nylon fabric TSA approved & RFID ANTI-THEFT: Unfolds the extra large backpack 90-180 degree making you quickly through the airport security and keep items tidy,Designed for airplane traveling. The big backpack for indoor/outdoor activities,Served as college laptop backpack.RFID Pocket with RFID-radio frequency identification help secure personal data encoded on you credit cards,IDs and passports.The anti-theft pocket on the back of backpack,easy to put your phone, purse and passport ADULT BACKPACK. Sport Backpack: For young players,room for all their sports equipment and college gear so they don't lose anything, A place for everything: Water bottles, umbrella, cleats, socks, shin guards, jacket, snacks. The most special is Outside pocket, it with adjustable compression straps that full sized basketball,rugby and volleyball.The best love for sports women, men and college adult Adult backpack. THIS ITEM IS NOT INTENDED FOR USE BY CHILDREN 12 AND UNDER. Extra Large & Gaming Laptop Backpack--Exterior size of the extra large business travel backpack:22*17*10 inch.Capacity:60L.Multi compartments give excellent protection for 2 laptop computers and tablet.Fits most 19,18.4,18,17.3,17,15.6,15 inch laptops