Boulder Gear Women's Insulated Luna Pants combine a classic look with technological warmth. It is rated at 5,000mm waterproofness/ 5,000 breathability, with critical seams sealed, and waterproof zippers to keep the moisture out. Mid leg ventilation sheds excess heat. An Internal Lycra Waist Gaiter and an adjustable waistband give a functional low rise fit. Articulated knees give you a full range of motion, and boot gaiters keep the snow out.