65% nylon / 35% polyester. Drawcord waist. Merrell Opti-Wick fabric transfers moisture away from your skin and dries quickly to keep you comfortable. Lightweight heathered fabric drapes just right, wicks moisture and dries quickly. Tab button details. Dual slash hand pockets. Roll-up leg option with button tab closure. Gusseted crotch eliminates chafing for walking comfort.