JanSport Superbreak Classics Series Daypack (Pure Purple) 42 centimeters high 32.5 centimeters wide Ultra-functional school backpack/daypack with 600-denier construction. Comfortable straight-cut, black padded shoulder straps and 2/3-padded back panel. 1,551.2 cubic inches of storage; measures 13 x 16.7 x 8.5 inches (W x H x D).