This is the pant for when youve got to be out there, no matter the conditions. Improved water-resistant and windproof AmFIB fabric is surprisingly soft and features four-way stretch to allow an unrestricted pedal stroke. Pearl Izumis permanent PI Dry water-shedding technology adds another level of weatherproofing that will last the life of the pant. They employ Thermal fleece panels treated with PI Dry behind the knees for pedaling comfort and temperature regulation. This is the pant for freezing temps; its their warmest bottom.