Sling is made out of high quality fabrics using recycled PET bottles. Made to expand horizaon, survive the urban city jungle and take on day hikes in the forest or on your travel adventures! Don't let its size fool you. Sling has more than enough room to slash everything you need for a day of exploring. whether you're scalaing a mountain or going for a sedate country walk. It's entirely made from recycled PET bottles to a compact or comfortable ergonomic cross-body silhouette that's suspened from a breathable mesh strap with a handy phone / waterbottle pocket. Furthermore it rolls into itself, transforming into a packable compact pilow.