These vacuum insulated TKWide water bottles keep drinks piping hot or icy cold. With the TK Closure™ internal thread design, interchangeable caps, and award-winning Climate Lock® double-wall vacuum insulation, these wide mouth bottles are on the leading-edge of thermal performance. The TKWide has a smooth, rounded lip, delivering a more comfortable and versatile drinking experience. With food grade 18/8 stainless steel construction and chip-resistant Klean Coat finish, these steel bottles are built tough to handle extreme conditions, outdoor adventures, and everyday life, with ice cold water to hot coffee by your side.