Made of durable, odorless, impact resistant HDPE Plastic #2, Polar Bottle's Half Twist Light Bottle is ideal for people on the go. With a Half Twist to open, you get an easy pour wherever and whenever you need to hydrate. A Half Twist back and the bottle is tightly sealed; no spills, drips or splashes. Take it in the car, on the trail, in your backpack, at the gym, at work or at play, the Half Twist Light is a great lifestyle choice. And, its BPA and Phthalate Free and made in America.