I realize this is not the answer you are looking for but compression gear is not ideal for snowsports, especially riding. You can make an argument for compression leggings, but seriously who is riding ultra-marathon style? I used to think I wanted some compression gear, but thankfully before I made the mistake I got educated.
A compression shirt could be useful for a super long upper body workout in the gym, but your upper body just doesn't get that from snowboarding. Lightweight, warm and wicking baselayers are much more comfortable.
Patagonia Capilene 2 is awesome.
Anything made out of merino wool.
Just a suggestion. I see that UA stuff everywhere.