Winner of the prestigious Red Dot Award for design excellence in 2014, the SIGG Hot & Cold bottles are the ideal bottle to stay hydrated on the go. They keep your beverages hot for over 18 hours and cold for over 24 hours! They are constructed from top quality stainless steel that is both odor and taste neutral. The 0.3L and 0.5L both come with a removable filter that can be used for fruit or loose-leaf tea. The slim shape and leak-proof seal mean it’s the perfect companion for the office and road.