Enjoy optimum drinking temperature for hours: This Travel Mug's unique TempShield double-wall vacuum-insulation keeps your beverages cold or hot for hours Durable Design: All of our products are made with durable 18/8 Pro-Grade stainless steel to ensure pure taste and no flavour transfer. Hand wash and air dry with lid off. BPA-Free mug with a press-in lid: The press-in lid (not leak-proof) features Honeycomb Insulation that keeps your beverages at the right temperature and an opening for easy sips. Thanks to the lid, you can carry and sip your drink without spraying it on Enjoy an immersive drinking experience anywhere: This mug is designed for everyday use whether you are going to work or doing any kind of exercise. Its soft touch finish gives a cosy feel in your hands. 100% Customer and product satisfaction warranty: We stand behind our products and have great faith in our products. HYDRO FLASK is committed to high standards of durable and robust materials. HYDRO FLASK guarantees this product with a limited lifetime warranty against manufacturer defects