Need ice cold water for the entire day? The BIGFOOT holds almost a quart and a half of your favorite drink to quench your big thirst. Featuring our TriMax® triple insulation technology, this bottle has been tested to keep liquid cold for up to 36 hours and hot for up to 8 hours. Its dual function top has a wide mouth to easily accommodate ice cubes and a convenient, comfortable drinking spout. Whether you're camping, on the golf course or just relaxing, BIGFOOT gives you the quality you've come to expect from Eco Vessel in a 45 ounce size you've always wanted. Spend more time having fun and less time refilling!