Made of 100% food grade silicone passed FDA, LFGB test, durable and flexible enough to folding, foldable drink bottle are Non-toxic, BPA free and safe. Endure-60 to 200 Celsius, Great for hot and cold beverages, you can freeze or microwave it. It can be used as a mini pillow when you have a long flight. Perfect for work, school, gym, running, hiking, biking, boating. It's easy to open flip top. Foldable easy to carry and anti-breakage. 10 1/5" L x 2 4/5" W