Leak Proof: Flip lid completely covers soft straw and helps ensure your bottle always stays leak free. Travel Ready: The built in carry loop is designed for on-the-go and fits in most cup holders. Perfect for working out and travel! Easy to Clean Design: All parts are BPA free and top rack dishwasher safe to make cleaning a breeze! BPA Free: Made of sturdy and stylish Tritan, certified BPA and lead free. All water bottle parts are dishwater safe