Abstract: A seat armrest and process of manufacturing same, including an armrest frame member and three shell members located around the frame member. All of the shell members have a depressed central portion and outer rim portions and one of the shell members is so sized so that it is slideable into one of the other shell members which is in turn connected to the arm frame member. The third shell member is then slideable over the other two combined shell members, and the inner wall of that shell member and the outer wall of the adjacently located shell member form a pocket in the seat armrest. A panel is also provided which is easily attachable to or removable from the armrest.