HARRY POTTER Rucksack Crest Slytherin. This Harry Potter canvas rucksack is perfect for carrying all the essentials to work and out and about. Designed with the Slytherin house green and black colours, and the Slytherin Crest. The rucksack benefits from two shoulder straps, a carry handle and large zip pocket on the front. It is a great addition to any Harry Potter collection. A perfect gift choice for a true Harry Potter fan.