The Polar Bottle Breakaway® Insulated Bolt Water Bottle has the features that will make it your favorite water bottle! This innovative bottle is equipped with a Tri-Layer™ insulation which uses radiant heat reflective technology to keep liquids cool to the last drop in any and all temperatures. It is built for performance and designed for effortless use as its new shape is easier to squeeze and fits securely in your bike cage. The cherry on top is the Surge Cap™ which is a high flow valve that self-seals to eliminate spill and splatter even on your bumpiest ride. Enjoy the benefits of a bottle made for cyclists by cyclists with the Polar Bottle Breakaway® Insulated Bolt Water Bottle!