The Swig 24 Oz. Mega Mug lets you enjoy more of your favorite beverage. Each Signature Swig Life™ Mug will keep drinks cold for up to 9 hours and hot for up to 3 with its double-wall, copper-coated insulation. Non-slip silicone base to keep your cups from tipping or making too much noise when you set them down. BPA-free slider lid included. Top rack dishwasher safe. Matte finish.