The 18oz Icon™ Mug from Thermos® keeps hot drinks hot for up to 5 hours and cold drinks cold for up to 20 hours using double-wall vacuum insulation. The slide lock lid is designed for one-handed commute use. 18/8 BPA-free stainless steel with a sweat-proof exterior and Griptec™ non-slip base. Fits most standard cup holders. Personalizable with custom laser engraving . Specifications: 18oz capacity | Double-wall vacuum insulated | 18/8 BPA-free stainless steel | Keeps drinks hot 5 hours, cold 20 hours | Sweat-proof exterior | Cup holder compatible Explore the full Icon™ Series , shop best sellers , or add laser engraving .