The safest and most healthy plastic bottle on the market, GREAT for kids school lunch box to keep drinks cool most of the day. BPA & Phthalates FREE. The Polar Bottle combines the thermal properties of an insulated vacuum bottle with the lightweight, flexible features of a plastic bottle, the Polar Bottle is the ideal choice for active people. Simply fill with liquid and ice and hit the trail. For even longer cooling power, fill your Polar Bottle and store it in the freezer before use. Either way, it will keep liquids cold twice as long as conventional water bottles
The insulating power of the bottle will obviously vary based on the conditions it's being used in. High temperatures, direct sunlight, and even high ambient humidity can all affect how long your water stays cold. Even in hot conditions, however, the Polar Bottle(R) will easily keep your drink cold more than twice as long as a standard single-wall, uninsulated bottle.
In order to maximize the effectiveness of the bottle, we recommend pre-freezing the water in a Polar Bottle before use. Fill your bottle halfway full with water and freeze overnight. The giant ice cube that results will keep your drink chilly for hours (do not fill the bottle more than half way before freezing, as the water must have room to expand as it freezes).
POlar have designed their products to be reusable and incredibly durable. Many of their customers are still happily using bottles they purchased in the mid-'90s, when the Polar Bottle(R) was originally released. This is not an uncommon feat. However, when you decide it's time to retire your Polar Bottle(R), they are completely recyclable.