The SodaStream Fizz&Go Stainless Steel Carbonating Bottle is a convenient and stylish portable drinkware option for making sodas on-the-go. With a sleek design in blue, this 31 fl oz bottle is made from BPA-free stainless steel for safe use. The included bottle is compatible with SodaStream soda makers and is the perfect size for enjoying fizzy beverages anytime, anywhere.