The Mammut Skintrack SO Pant takes on chilly ascents. These softshell ski touring pants use 4-way-stretch FLEXGUARD Active fabric to block wind while staying breathable and flexible. The cut leaves space for warm layers underneath and carries from the skin track into technical descents. What Our Gearhead(R) Experts Are Saying:"On long, cold climbs, I opened the mesh-lined side vents as soon as my legs started running warm and zipped them shut again at the top. Venting released the heat without my stopping to change layers, so I wore the same pants from the first skin track to the last turn."