Merrell Opti-Wick fabric transfers moisture away from your skin and dries quickly to keep you comfortable. 65% nylon / 35% polyester. 50+ UPF fabric. Drawcord waist. Lightweight heathered fabric drapes just right, wicks moisture and dries quickly. Tab button details. Dual slash hand pockets. Button-secure single welt leg pocket stores lip balm and essentials. Drawstring adjustable hem cinches for personal fit. Gusseted crotch eliminates chafing for walking comfort.