The Quantum Thermagraph® Pant boasts the 686 Thermagraph® Warm Lining System with Body-Mapped Insulation, giving you the best of both worlds: the warmth of insulated pants and the temperature control of a shell. Insulated panels through the seat and knees ensure the places where your body comes in contact with cold surfaces—chairlifts and snow—is insulated, while large shell zones create superior heat and moisture management. This innovative lining system, coupled with Air-Flo™ inner leg vents, makes the Quantum Thermagraph® Pant perfect for braving the coldest winter days without overheating during warm spring sessions.