Keep your drink at the perfect temperature throughout your day. Double wall stainless steel vacuum insulation coupled with an interior layer of copper coating keeps your beverage cold for up to 24 hours and hot for up to 8 hours. Twist-texture design adds a great look along with a comfortable grip. Easy-to-use lid design slides open and close and is also straw compatible. 20 oz capacity is the perfect sipping size to get you through your day and is also single-serve compatible.