Product details:

A beautiful line, your climbing partner, a rope and a rack: The greatest days merge elegance and efficiency. The R1 Pullover maintains a similar focus, with a durable, finely tuned high/low interior grid polyester fabric (Polartec Power Grid ) that warms, stretches, moves moisture and insulates now redesigned exclusively for Patagonia to be even lighter and more breathable. Its technical fit accommodates light underlayers or works as a stand-alone top, and it squashes down to practically nothing in your pack. With redesigned simple cuffs, a smooth, microfiber face for easy layering, raglan sleeves for pack-wearing comfort, a zippered chest pocket and Polygiene permanent odor control.