Introducing our 500ml Cola Bottle Shaped Double Wall Vacuum Insulated Flask Swell Bottle! Crafted with precision in our factory, this stainless steel bottle is perfect for keeping your beverages hot or cold for hours on end. Its double wall vacuum insulation provides superior temperature retention, while its sleek shape resembles a classic cola bottle. With a capacity of 500ml, you can enjoy your favorite drinks on the go. Designed to last, this durable flask offers convenience, style, and functionality in one. Stay hydrated in style with our factory-made Swell bottle!