Herschel Supply Co. Classic XL Backpack. The original backpack. Designed for everyday, the Herschel Classic™ XL offers a water bottle pocket, a laptop sleeve and extra storage to fit all your daily essentials. Signature striped liner. 15" laptop sleeve. Zippered closures with Prusik cord pulls. Front pocket with key clip. Water bottle pocket. 17.5" (H) x 12.5" (W) x 6.5" (D). Imported.