The Streeterville Thermalock desk mug is an insulated thermal mug, perfect for hot and cold drinks at the desk. With a capacity of 420ml, the mug features a splash-proof, removable lid, ideal for use around laptops and PCs. This thermal mug is supplied in a Sake grey finish with stainless steel interior and handle. Keeping drinks hot for up to five hours and cold for up to 15 hours, the Contigo Streeterville mug is dishwasher-proof and makes the perfect mug for keeping coffee warm throughout the working day.