Herschel Classic Backpack XL - 30L. This backpack is made with 100% recycled EcoSystem™ fabrics and features a water-bottle pocket and a laptop sleeve. It has enough volume to pack in all your school essentials and more. The backpack is crafted from 600D Fabric and a tonal stripe liner, both made from 100% recycled post-consumer water bottles. It includes a floating sleeve designed to fit 15"/16" laptops, zippered closures with Prusik cord pulls, adjustable padded shoulder straps for comfort, a water bottle pocket, a front pocket, and an internal Herschel Supply stripe DNA tab.