The Monster Bottle is a collaboration between 11+ and Sticky Monster Lab. Sticky Monster's famous character and 11+'s minimalist design come together nicely to offer a sensible and fun addition to your kitchen, bag, or desk. Monster Bottle is made with eco-friendly Tritan and is safe to use with liquids from -4 to 212 degrees Fahrenheit. The silicone infuser attached to the cap makes it easy to brew a hot or cold drink with your favorite tea. Monster Bottle is a superlative tool to add more flavor to your life.