I started wearing these last year, I wish I hadn't waited so long LOL. In cold weather I wear them under insulated pants, in warmer weather under shells.
Caveat: IMO they run a tad small around the waist. So unless you like a LOT of compression, size up
Endurance Generator Insulator Joint & Muscle Support 3/4 Compression Tight: Black
Keep warm and gear up for your best performance with Men's Black Endurance Generator Insulator 3/4 Compression Tights. Free shipping & returns.
cw-x.com
Caveat: IMO they run a tad small around the waist. So unless you like a LOT of compression, size up