When the dark clouds roll in and the air gets damp, we pull the Mountain Equipment Zeno FZ Pant from our pack. The full-length, two-way side zips make it easy to slip this pair over our boots and hiking pants, while the internal and external zip flaps ensure moisture doesn't find a way past the waterproof laminate. We cinch the waist and hems tight and trek on comfortably with the articulated knees and crotch gusset allowing full range of motion.