Discover the ultimate in beverage enjoyment with this 20oz tumbler featuring a secure slide lock lid. Made from high-quality stainless steel, this tumbler boasts a variety of captivating designs to suit all ages. Its double-walled insulation keeps drinks at the perfect temperature for up to 12 hours cold or 6 hours hot. Complete with a straw, this tumbler is the perfect companion for all your on-the-go refreshment needs.