BPA-Free Material: Made from durable BPA-free Tritan plastic for safety and convenience. Stainless Steel Lid: Includes a touch of metallic stainless steel with a reliable silicon seal for security. Water Bottle for Charity: Every bottle sold provides clean water for those in need through our partnership with water.org. Compact and Stylish: Designed to fit stylishly into bags and pockets for convenience on-the-go. Warranty and Temperature: Backed by a 2 year manufacturing warranty and safe for temperatures up to 100 degrees Celsius.