Abstract: A seal assembly includes a seal body and an energizer. The seal assembly is dimensioned to lessen the chance of certain failure modes, such as back jetting of pressurized fluid that gets behind the energizer during a pressurization operation. A ratio of a lateral distance of the seal body to an axial length of the energizer is between 0.400 and 1.7087. A ratio of the lateral distance to an inner radius of the seal body is between 0.10 and 0.401. A ratio of a web thickness of the seal body to the inner radius is between 0.068 and 0.0881. A ratio of the difference between a radial height of the energizer and a groove height of the seal body to the radial height is between 0.050 and 0.155. A ratio of the difference between the radial height and the groove height to the inner radius is between 0.015 and 0.3486.