Keep drinks at ideal temperatures with the help of this sleek and stylish SipTek™ tumbler! Constructed of durable stainless steel, this wonderful drinkware features a 20 ounce capacity, a slim design that fits most cup holders, a push-on, slide-lock lid and high performance double wall vacuum insulation that keeps hot liquids hot for up to 5 hours and cold beverages chilled for up to 24 hours.