When warmth is called for, the Eastern Insulated pant steps up to help meet your needs. The triple threat of V-Science 2-Layer Shell with our Quilted 40gm Insulation to Knees and V-Science Breathable Lining System helps keep your temperature even keeled and comfortable throughout the day. Critical Taped Seams helps to keep wetness in check. The GPT Articulated Fit keeps the feel just right. And with a waterproof/breathable rating of 15,000mm / 15,000gm2 to round it out, you can stare down cold weather with confidence.