The Helly Hansen Women's Legendary Insulated Pants are a top-selling ski mountaineering skirt on Amazon. These pants are designed for the serious backcountry skier, with a focus on warmth and protection. The Legendary Insulated Pants are made from a waterproof and breathable fabric, with fully sealed seams to keep you dry in wet conditions. They feature a regular fit and articulated knees, allowing for a comfortable and ergonomic fit. The pants also have a range of features designed specifically for ski mountaineering, such as reinforced knees and seat, adjustable waistband, and integrated gaiters. With their high-quality insulation and reliable performance, the Helly Hansen Legendary Insulated Pants are a popular choice.