not nessacerly(sp), our heavy is a mear 220 with all his clothes on. and most of the guys he wrestlers are 250-270. now that is 30+ pounds of fuscle(mixture of fat and muscle) on you. it's tough. and even if he weighed the same, still that much weight on you is going to be hard to move around. the lighter weights take it for granted that their guy is only 100-130 pounds.