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. A modern take on the nostalgic brown paper bag lunch, insulated to keep your lunch fresh. The updated 2.0 design features a natural cotton webbing to reinforce the handle and buckle strap.