Roka Waterhouse Flax Medium BackpackIncorporating both the Natural History Museums vision of a sustainable future and ROKA Londons emphasis on recyclable materials, the backpacks main waterproof canvas material is made from recycled plastic material (rPET). Sourced from post consumer plastic such as plastic bottles, this collection is breathing new life into a material that is not biodegradable. A re design of the beloved Canfield, this roll top backpack boasts three convenient front