Thermal Skinny Tumbler - Suitable for hot and cold drinks! Enjoy your favourite drink in style with our Double Walled Thermal Tumblers. With 20oz capacity, these tumblers are reusable and are perfect for use at home or the office and make a great personalised gift Thermal tumbler - suitable for hot and cold drinks. Double walled insulation - keeps drinks cold for up to 12 hours and keeps drinks hot for up to 6 hours! Boxed and Includes lid and straw.