Lenovo Everyday B510 Laptop Backpack, 15.6", Black The Lenovo 15.6 "Everyday Backpack is made of high-quality water-resistant and damage-resistant material for durability. The laptop compartment fits a 15.6" laptop along with several of your favorite accessories. A spacious secondary compartment is also available to store personal belongings whether for the gym, a business trip, or everyday life. The Lenovo Everyday Backpack has a quick-access pocket and side pockets.