Stainless steel double-walled drinking bottle (730 ml) with a PU carrying sleeve, straw, and strap. The interior is made of stainless steel 304, and the exterior is stainless steel 201. PP lid with a push button to open or close the spout, and a separate drinking opening. Keeps contents hot for 6 hours and cold for 10 hours. Individually packaged in a brown cardboard box.