Sports water bottle, Iron Flask. Stainless steel and holds 40 oz.  Double insulated to keeps liquids cold for 24 hours. Use the pop up straw on the top or insert the 1 that will come with it.(not the original) Nice easy carry handle on the top. There is 1 small dent by the top on the side. No stainless steel after taste. Hand wash only. Water bottle and straw only.