Herschel Supply Co. Seymour Backpack in Black. Herschel Supply Co. Seymour Backpack in Black. Canvas exterior with EcoSystem ™ lining made from 100% recycled post-consumer water bottles. Made in China. Back entry zipper closure. Exterior storage sleeve with pocket organizer and sunglasses pocket Interior zippered mesh pocket. Padded floating sleeve fits a 15/16 laptop Dual expandable water bottle pockets. Adjustable EVA-padded shoulder straps. EcoSystem ™ recycled fabrics. Measures approx 12.5W x 19.5H x 7D. HERS-WY241. 11403-00001-OS. Herschel supplies backpacks and bags that are modern in shape with loads of crafted detail. Inspired by the old-school American mountaineering heritage and world travel, their collection is a new twist on all your vintage favorites. Shop the latest in fashion from Herschel Supply Co.