This stainless steel vacuum insulated coffee cup is designed to keep your drinks hot or cold for hours. It features a wide mouth, round and delicate design, making it easy to clean. The cup has a detachable straw and a non-slip bottom, making it convenient to carry and use. The inner and outer layers are made of 304 and 201 stainless steel, respectively, providing excellent insulation and durability. The lid is made of PP and the straw is made of silicone.