Room for adventure. Sized for everything you love to do, this backpack is made with 100% recycled EcoSystem fabrics and has the volume you need to pack everything in. Outer & Lining: Fabric Herschel ClassicBackpack XL - 30L Room for an adventure-filled semester. Sized for everything you love doing whether you're in class or not. Made with 100% recycled EcoSystem™ fabrics and updated with features like a water-bottle pocket, laptop sleeve, this backpack has enough volume to pack in all your school essentials and more. Product Details: EcoSystem™ 600D Fabric made from 100% recycled post-consumer water bottles. Tonal stripe EcoSystem™ Liner made from 100% recycled post-consumer water bottles. Floating sleeve fits a 15"/16" laptop. Zippered closures with Prusik cord pulls. Carry comfortably with adjustable padded shoulder straps. Water bottle pocket. Front pocket. Put Yourself Out There™ internal label. Internal Herschel Supply stripe DNA tab.