NWT Black with purple accents The North Face Thermoball women’s ski pants. Size XL Waist is 17.5” at widest but adjustable with Velcro straps on both sides. Inseam is 30”. The North Face Women's Thermoball Snow Pants keeps you dry and toasty so your focus stays on the mountain, where it belongs. The HyVent 2-layer nylon shell protects the PrimaLoft ThermoBall insulation with a durable and waterproof fabric, which is also breathable and lightweight. Since these stylish snow pants have a relaxed fit, they allow room for layering or the comfort of wearing them as is. The Thermoball Snow Pants prevent moisture from seeping through with the fully-taped seams and StretchVent gaiters. If the snow stops and the sun makes an appearance, the zippered inseam vents let you shed some heat while still keeping you dry.