Keri Russell & Baby in Arctic Expedition

1/4/2008 8:45 AM PST
Between her parka and son River doing a great job of covering her face, it's surprising that our photog even recognized Keri Russell trekking through the snow in New York yesterday.

Though her baby was snug in Keri's coat, and the fur-lined jacket definitely offered protection from the 18-degree temps, Russell forgot one thing -- mittens. Doesn't she know the extremities are always the first to fall victim to frostbite?!