Zojirushi Tuff Sport unbreakable stainless steel vacuum bottle. Innovative design makes it lighter and more compact than other bottles of the same 1.2 liter capacity (41 oz). It has a wide mouth design for easy cleaning and added versatility, such as accommodating full size ice cubes. The pour thru stopper is of an advanced leak-proof design that locks tight. Has an amazing thermal retention of 12+ hours!