What is the fit like on the fed practice tees? I am a large in nike but a medium in lacoste polos, just to give an idea of my sizing. I dont like when its super tight but I prefer a slim fit compared to a loose top. I have this adidas shirt in large and i find it too loose http://www.tennis-warehouse.com/adidas_Mens_Summer_Edge_Crew/descpageMAADIDAS-AMSUEDC.html * I am NOT looking to wear the federer practice shirt for tennis. I want a nice casual shirt. If this shirt tends to be too loose, what casual shirt can you suggest? Thx.