Patagonia Regulator Series

Patagonia R Series stand for the Regulator® Insulation. The lofted hollow-core fibers of Regulator Insulation conserve body heat while allowing body moisture to wick uninhibited during sweat-inducing activity. They're also lightweight and highly compressible for packing - a boon when every inch of pack space counts.

Patagonia R.1 Flash PulloverPatagonia R1 Series - Newly redesigned R1 fabric (made with recycled polyester content) provides excellent stretch, warmth, moisture management and breathability in a variety of temperatures, whether worn as lightweight insulation or a thermal baselayer.

We carry R.1 Flash Pullover for both Men and Womesn and we also carry the Patagonia R1 Granular Jacket for Women.

Patagonia R2 SeriesPatagonia R2 Series - The improved variegated-fiber R2 fabric, now with a matte finish and greater warmth, has superb breathability and compressibility along with minimal weight. New, matte-finished R2® fabric is light, stretchy and compressible, with increased warmth, more thermal efficiency and greater breathability.
The updated R2 fabric features higher loft from variegated fibers with longer insulating tall fibers and more dense, supportive short fibers.

Patagonia R3Patagonia R3 Series - The R3 High-Pile Warmth has Fur-like fibers that create heat-retaining loft and offer superior warmth and lightweight breathability. The lofted hollow-core fibers of Regulator Insulation conserve body heat while allowing body moisture to wick uninhibited during sweat-inducing activity. They're also lightweight and highly compressible for packing - a boon when every inch of pack space counts.
We carry R3 Jackets for men and women.

Patagonia R4 Series JacketsPatagonia R4 Series - Our warmest fleece, R4® features a toasty and stretchy fabric package with variegated-fiber R2® on the inside, a windproof laminate in the middle, and full-loft R2 on the outside, making it a champ alone or under a shell. 100% recyclable through the Common Threads Recycling Program. We carry Patagonia R4 Series Jackets for Men and Women and Patagonia R4 Vests as well. See details of a women's R4 jacket.

These pieces may be worn alone in milder weather. When weather looms, they complement our Climbing, Skiing and Snowboarding shells and Performance Baselayer pieces.

If you're confused about which combination of Regulator layers is right for you, feel free to call our friendly customer service center toll-free at 866-488-4060 (M-F, 9am-5pm).