Arctix Ski Bib Pant Womens Outer Material: 100% Taslan Nylon--A durable fine-filament nylon fiber that is lightweight. Insulation: Thermatech--Designed to provide non-bulky comfort, this slim insulation also delivers warm comfort. Water Resistance: Waterproof--Treated fabrics and specially designed zippers, closures, and seams completely seal out water and rain. Seam sealed--Seams equipped with a barrier against water for a completely waterproof garment. Breathable--Allows moisture inside the garment to escape and evaporate. Promotes air flow.