About Hot Dawgs Down Mules, by Molehill: Hi, this is Doug from Molehill, and I'd like to show you our Hot Dawgs down gear for warm feet in the mule style. These are camp booties that can be worn in the house or in the tent. They feature waterproof breathable exteriors, a durable 600 denier polyester sole, fleece linings, and a 60/40 down on the inside. They're the warmest footwear available for après ski or after hiking or just hanging out at home.