Actually my dad bought some of the old tear away jerseys for the Arkansas Razorbacks the year after they outlawed them, and if I remember correctly, those did tuck in. I really think the length had something to do with just being cooler in a temperature since definitely not fashion. There were two lengths as a poster noted. They were not cut off. Socks I am sure are or were the same way. Now, with the new wicking material, there really is no excuse not to look identical. I know a lot of high schools are going to regulation. We see more and more companies actually sponsoring teams and all of this is part of the agreement.