A warm and compressible mid layer that's easy to shove in your pack or fit under another layer, the men's Patagonia R2 fleece jacket is your go-to choice for cold-weather excursions. Directionally knit Polartec® Thermal Pro® fabric is breathable, compressible and exceptionally warm; it also wicks moisture and dries quickly. R1® Polartec Power Grid® fabric on side panels provides improved fit, breathability and abrasion resistance; with HeiQ® Fresh durable odor control. Technical fit, underarm panels and raglan sleeves offer increased mobility and comfort under outerwear and packs.