I used 686 Smarty pants in Tignes a few weeks ago.
Firstly really nice pants. Look good, well waterproof and well made.
Secondly I wasn't cold at all. I wore the liners a few times as some days were -10c (14f) but ended up with the vents open a lot of the time. Was nice to have the versatility though. But I reckon I'd have managed ok without the liners even on the cold days if I'd had to. I was also wearing merino wool socks, knee pads and impact shorts so those probably provided some extra warmth.
The liners did make pretty good lounging pants for around the apartment in evening thought!
Last edited by Slush Puppie; 01-01-2012 at 07:18 PM.