Survey Backpack 20L Size:20L this 14L daypack has a Accepted as a carry this 14L daypack has a built in hydration system and slip resistant pull tabs for extra grip when zipping Compatible with a sternum strap for added support Created to navigate city terrain on bike or foot streamlined to glide through crowded buses and trains — however you commute the Survey Backpack carries your workday essentials ' EcoSystem 600D fabric made from 100% recycled post consumer water bottles Tonal stripe EcoSystem Liner made from 100% recycled post consumer water bottles Padded floating sleeve fits a 15in 16in laptop Magnetic strap closure carry comfortably with Adjustable EVA Padded shoulder straps water bottle pocket expands to Fit different sizes side storage sleeve for Quick reach items Hidden Zippered storage sleeve Put Yourself Out There internal label Herschel Supply DNA shoulder tab internal Herschel Supply stripe DNA tab