This hat was named for the geological formation, the Lias, where ammonite and ichthyosaur fossils were discovered by Mary Anning in the early 1800s along the Jurassic Coast of the UK. The stitch pattern is based on a Victorian stitch pattern published during her lifetime. Whether you are hunting for fossils on a cold and blustery day by the sea or walking the dog, this hat will provide warmth and protection from the elements.