Herschel Supply Co. Cotton Casuals Packable Daypack in Ivory. Herschel Supply Co. Cotton Casuals Packable Daypack in Ivory. 100% cotton. Made in Vietnam. Hand wash. Two-way top zip closure. Front zip pocket. Adjustable shoulder straps. Measures approx 12 W x 17 H x 4.5 D. HERS-WY164. 10076-04493-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.