Originally Posted by
truman
http://www.rei.com/product/786461
These are good down from 50 to the mid 30's alone, and good to 20 or less with a good base layer underneath. They fit more like snug sweat pants than like tights. Mine are on their 4th year commuting.
I'm using the same pants down to -20 F with xmart wicking tights (like cheap UA stuff) under them.