Dear friends, This water bottle has 5 kinds of capacity, 350ml/500ml/650ml/800ml/1000ml, The 800ml water bottle is new in 2020! And each capacity has a certain price reduction! please choose the corresponding capacity according to your needs! We will ship according to your order capacity! Because the number of titles is limited, you can't put all the capacity into the title, please forgive me! Happy shopping!