PLOS (The Public Library of Science) is pleased to offer a range of official merchandise for those who want to spread the word and support PLOS. Every product is produced digitally “on demand” just for you and carries a 100% customer satisfaction guarantee. We offer local delivery at competitive rates (see national store links at bottom of page) and a fair price on delivery in the rest of the world. All apparel is produced in self-owned plants that practice lawful, humane and ethical manufacturing.