The Gruffalo Rucksack (47 ratings) £10.99 exc. VAT Out of stock. The Gruffalo zip-up rucksack has a plastic coated front with an illustration of The Gruffalo and the mouse. The other material on the rucksack is pale blue nylon with contrasting adjustable bright green straps and a hook. Size: 23 x 30 cm See all of The Gruffalo range.