Get the technical performance of a vacuum sealed insulated water bottle in a lightweight plastic version that's easy to throw in your pack or just grab and go with the Polar Bottle 12oz Insulated Water Bottle. Featuring an insulating layer between two walls of plastic, the Insulated Water Bottle keeps cold liquids chilled twice as long as other water bottles. Good for sports or just every day use, the Insulated Water Bottle fits in standard bike water bottle cages and also has a convenient, removable carrying strap. The wide mouth easily accommodates ice cubes and make it easy to fill and clean. You never have to worry about toxins because all Polar Bottles are both BPA and phthalate free.