Since R1® tops work so well under fishing jackets, Patagonia decided to extend the experience downward. They found that lightweight fleece pants, made from the same comfy, stretchy 6.8-oz Polartec® Power Grid® 93% polyester (41% recycled)/7% spandex fabric, feel just as good under waders and rain pants. In fact, the fast-wicking, low-bulk performance of the R1® Pants is the perfect combination whenever rigorous wading or extended hikes come into play. Two front pockets hold keys and cash. Elastic waist with adjustable drawcord minimizes bulk and keeps the pants securely in place. Fair Trade Certified™ sewn.