and I can't figure out what size to get. I'm tall so I usually wear an XL so the sleeves are long enough, but in going with the XL, it usually fits a little lose. What size should I get?

do you mean like a rash guard/heater vest or those baggy riding shirts?

<img src="http://www.wakeworld.com/MB/Discus/messages/65919/327305.jpg" alt="Upload">

I cant remember what size I got from Liquid Force last year. I can say that it does keep the wind chill down to a minimum on cool morning and evenings. I like it.