I purchased this pant to use as a base layer when I ski.  I haven't gone skiing yet so I can't comment on how well it works as a base layer.  However, when compared to the UnderArmor base layer shirt I purchased(from Amazon), the quality on this pant only appears to be not as good or as comfortable.

Also, I'm 6'2" and over 200 lbs and always wear size XL.  With this pant, I ordered an XL but somehow it seems to be lose and on the long side for me.  I suggest that you consider getting one size smaller than your normal size.