This premium flask is made of high quality 304 grade stainless steel Fully insulated, double walled & Vacuumized for better temperature retention Retains temperature for upto 16 hours! Cola flask, also known as cola bottle is a stylish way to carry your beverages Has a silicon ring around the cap for comfortable grip Comes with a storage pouch for carrying easily Beautiful design, easy on eyes Capacity: 750 ml (approx)Available in 2 colors: Wine Red & Metallic Gray