A conformable pressure vessel (100, 300, 400, 600), comprising: pressure vessel segments defined by a cavity disposed within a liner, the pressure vessel segments configured to receive and store a gas in a compressed state, and each of the pressure vessel segments including a first section of the liner having a first diameter and a second section of the liner having a second diameter smaller than the first diameter; a reinforcement layer surrounding the liner; an inlet in fluid communication with the cavity of the liner at a first of the pressure vessel segments and configured to receive the gas from a gas source, the inlet having a first end downstream of the gas source, a second end downstream of the first end, and a middle portion between the first end and the second end, the middle portion having a cross-sectional area smaller than a cross-section area of the first end and a cross-sectional area of the second end; and an outlet in fluid communication with the cavity of the liner at a last of the pressure vessel segments and configured to output the gas from the pressure vessel segments, the outlet configured to fluidly communicate with the second end of the inlet through a connecting tube having an interior profile shaped to enable flow of the gas through the connecting tube from the outlet to the inlet and to prevent the flow of the gas through the connecting tube from the inlet to the outlet; wherein when the gas flows across the middle portion of the inlet, a velocity of gas flow increases to create a low-pressure area in the inlet, wherein the low-pressure area in the inlet and the interior profile of the connecting tube are configured to motivate flow from the last of the pressure vessel segments to the first of the pressure vessel segments to recirculate the gas through the pressure vessel segments in response to the inlet receiving the gas from the gas source, and wherein recirculating the gas through the pressure vessel segments equalizes a temperature of the conformable pressure vessel (100, 300, 400, 600). pressure vessel segments defined by a cavity disposed within a liner, the pressure vessel segments configured to receive and store a gas in a compressed state, and each of the pressure vessel segments including a first section of the liner having a first diameter and a second section of the liner having a second diameter smaller than the first diameter; a reinforcement layer surrounding the liner; an inlet in fluid communication with the cavity of the liner at a first of the pressure vessel segments and configured to receive the gas from a gas source, the inlet having a first end downstream of the gas source, a second end downstream of the first end, and a middle portion between the first end and the second end, the middle portion having a cross-sectional area smaller than a cross-section area of the first end and a cross-sectional area of the second end; and an outlet in fluid communication with the cavity of the liner at a last of the pressure vessel segments and configured to output the gas from the pressure vessel segments, the outlet configured to fluidly communicate with the second end of the inlet through a connecting tube having an interior profile shaped to enable flow of the gas through the connecting tube from the outlet to the inlet and to prevent the flow of the gas through the connecting tube from the inlet to the outlet; wherein when the gas flows across the middle portion of the inlet, a velocity of gas flow increases to create a low-pressure area in the inlet, wherein the low-pressure area in the inlet and the interior profile of the connecting tube are configured to motivate flow from the last of the pressure vessel segments to the first of the pressure vessel segments to recirculate the gas through the pressure vessel segments in response to the inlet receiving the gas from the gas source, and wherein recirculating the gas through the pressure vessel segments equalizes a temperature of the conformable pressure vessel (100, 300, 400, 600).