/cgl/ - Cosplay & EGL

I'm working on getting in shape, once I'm /fit/ I want to do a Wesker cosplay. Is his S.T.A.R.S. uniform shirt supposed to be a long-sleeved shirt with the sleeves rolled up past the elbow, or is it a short-sleeved button-up with cuffed sleeves? If the latter, where might I find a shirt like this? All of the short-sleeve button-ups I've looked at have sleeves too short to cuff them and have them end where his do.