This is the perfect mug for cold winter days. Handwarmer Mugs are unlike traditional coffee mugs, because they are designed with an ergonomic pocket so you can wrap your fingers in comforting warmth while you enjoy your favorite hot beverage. Ideal for sitting around the campfire on a cold night or for those chilly mornings with coffee on the porch. Choose from right-handed or left-handed contours. These mugs are dishwasher safe, microwave safe and ovenproof (although you probably do not want to wrap your fingers in them if you have been baking them in the oven....) The glaze is lead-free. Handmade in Washington State.