Patagonia Men's R2 Jacket The R2 Jacket's directionally knit Polartec Thermal Pro fabric is breathable, compressible, wicks moisture and dries quickly, with a superior warmth-to-weight ratio R1 Polartec Power Dry high/low grid on side panels, underarms and lower torso for improved fit, shape retention and abrasion resistance Discreet, on-seam thumb loops provide added coverage One left chest pocket and two high-hand pockets have Slim Zip installs, clean finished zipper garages, and are harness- and pack-compatible; two internal drop-in mesh pockets A re-engineered pattern offers a refined technical fit, reduced underarm lift, and offset seams for comfort under outerwear and packs