All Out of the Woods bags feature Supernatural Paper™ which is sustainable, washable, and vegan. Supernatural Paper™ is FSC®-certified (FSC® C175379) made of tree cellulose, a renewable resource, from responsibly managed forests. The perfect accessory for when you have a lighter load to carry. This washable backpack has all the right details – from two sets of durable straps to an outer pocket-sized for sundries.