It is awfully difficult to lug a trail map around the slopes with you all day. With the number of times you wipe out in a cloud of snow, the thing is bound to get wet and unreadable. Wear a pair of these silk shorts and have a trail map for any one of 13 different ski areas just a quick unzip away. They have one with a map of the NYC subway system as well. I can’t really decide whether it is odder to drop your pants in the streets of NY or on top of a freezing mountain.