Clean and classic—and not to mention cozy—this mountain must-have brings comfort to any chilly day on the go or kicking back. The foundation of its comfort is a heavyweight blend of organic cotton and ultrasoft microfleece created from post-consumer plastic water bottles. Its fleecy interior, shape-retaining stretch ribbing on the hem and cuffs and classic cut are designed for peak comfort, next-to-skin softness and lasting durability.