From the 3.1 Phillip Lim Website: Wide leg pant made using durable Invista CORDURA® yarns to create cruelty free wool blend twill. Gathered elasticated drawstring waist, front pleats and side slip pockets. Made with Responsible Wool Grown naturally and harvested from mulesing-free (cruelty-free) sheep consuming a simple diet of grass, water, air and sunshine. Wool is a natural, renewable, biodegradable fiber that is anti-wrinkling, order and stain resistant, with unparalleled softness and comfort. Wool is an active fiber that reacts to changes in weather and adjusts to body temperature. Style: Serge 55% Wool, 25% Nylon, 20% Polyester Professional dry clean only Size: Medium Condition: New With Tags Original Price: $595 29" waist 31" inseam