Texsport Blue Enamel Coffee Cup Mug - Great for Outdoor Camping Blue enamel mugs are distinct and durable metal core for hiking outdoors. Great addition to your set You will be happy with the perfect gear to add to your accessories. Great for the avid backpacker! Ultralight!! The larger 24 fluid oz cups only weigh 5oz and the 12 fluid oz cup weighs 3oz. Authentic TexSport Adventure Gear Backpacking on your caribiner. Perfect for a lightweight backpack.