100% Polyester Shell And Fill; Lining Is 80% Nylon, 20% Polyester * 3K/2K Waterproof/Breathable For Chest-To-Toe Protection From The Wind And Snow * Velvety-Soft Tricot Inner Waist And Fly * Growth Seams At The Pant Hem Extend 1.5 Inches To Allow For Multiple Seasons Of Use