Featuring our Trimax® triple insulation technology, the Boulder Spartan Bottle has been tested to keep water cold for more than 36 hours and retain heat for over 8 hours. Perfect for water, tea, coffee, soup or just about any drink. Its tight screw on top will keep your drink securely inside, where it belongs. It has a wide mouth to easily accommodate ice cubes and a convenient drinking spout. The Boulder is a sturdy, high quality, stylish bottle for Spartan training, tennis courts, golf course, on the trails... anyplace, anytime.
Posted by James on 28th May 2014
Took this water bottle to the beach, and even in the sun for hours, my water was still cold. Really impressed with it.
Posted by Unknown on 30th Nov 2013
This is my husbands favorite for work in the Summer His water stays cold all day every day. No more having luke warm to hot drinks, this does the job and working in a factory in 100 degree (f) gets you dehydrated. I need to get some more of these so there is always a back up and one for the rest of us. We finally found a way for him to have a cold refreshing water whenever he wants one without worrying about running to a store or finding a refrigerator.