Ass Class The glutes or backside are one of the largest muscles in the human body. The ass class will challenge all the major glut muscles and also work the hip and stabilizers muscles around the backside to ensure that perfect posterior is maintained. Remember if the glut muscles are not functioning correctly chances are the lower body is not working to it’s potential be it in a sports specific arena or just keeping it high and tight.!! Type: Miscellaneous Location: FLYEfit Lower Baggot Street OPEN 24hrs, 15/16 Lower Baggot Street