Haven Mule - LicensedUpgraded DWR (Durable Water Repellent) exterior material. Introducing Portland Gears first ever shoe, the Haven Muledesigned in collaboration with footwear industry veterans with over 25 years of experience. Experience unbeatable comfort throughout your day, whether youre heading to school or work, moving to and from sport, or exploring the city. Built using a variety of recycled materials, the Haven Mule delivers comfort you can feel good about.