If go a large, player issued are meant to be tighter, ISC have a slimmer fit on all their clothes, I usually get Ms but found myself getting all L, if you want a loser baggies jumper, go with an XL maybe?Hows ISC sizing on hoodies? I'll order one but i don't know if i should get a M or L. Got one of those PI guernseys and they were pretty small to say the least, M was like a S. Should I got a size up on the hoodie or just go for the M?