Primaloft® Gold Active Insulation Boasts Class Leading Warmth To Weight Ratio, Tiny Pack Size, Water-Repellency, 4 Way Stretch And Superb Breathability, Making It The Ultimate Insulation For On-Bike-Wear.Features:- Highly Breathable, Lightweight Exoshell40™ 3-Layer Waterproof Fabric In A Fully Seam-Sealed Construction - Pfc-Free, Non-Toxic Durable Water Repellent Finish - Water Repellent Front Zip With Storm Flap - Grown On Hood With Volume Adjuster - Subtle Reflective Details - Zipped Chest Pocket Doubles A Stuff Sack Specifications:- Nylon 100%