Mad Hatter Collection For Country and Town. So out & about in all Seasons. Our Poms, Fedoras, and Caps really are a treat. Because our Range of Accessories Compliment our very own Branded Hats. These are a lovely addition. The Mad Hatter of Durham is Based in the North East Of England, we are an independent country hat retailer, bringing together an impressive collection of a great range of hats from traditional Tweed flat caps to cashmere and angora Pom Pom hats, and felt fedora hats , with the very latest in rural style and trends to create a unique hat shopping experience that can now also be enjoyed online and at local countryside events and agricultural shows.