Patagonia Women's R4 Jacket
Patagonia Women's R4 Jacket fabric is the warmest fleece available, with improved Polartec® Windbloc® polyester that has a windproof laminate sandwiched between a high-loft exterior and an R2® grid interior. This toasty, full-stretch package features sonic-welding and micro-stitch technology on the zipper seams to reduce bulk, creating a more sleek and supple silhouette. Microfleece lines the collar, cuffs and hem for comfort, and the zippered handwarmers secure necessities. Offset shoulder yokes allow for pack-wearing comfort, and an interior wind flap prevents chill through the zipper.
- R4 fabric is windproof, superwarm and stretchy
- Sonic-welded seam construction with reinforced stitching (patent pending) reduces seam bulk on center-front zipper and pockets
- Microfleece-lined collar, cuffs and hem enhance comfort
- Interior wind flap prevents chill through the center-front zipper
- Shoulder yoke offset for comfort with pack straps
- Pockets: Two zippered handwarmers
- 13-oz Polartec® Windbloc® 100% polyester high-loft exterior with a stretchy windproof laminate and an R2® grid interior
- 567 g (20 oz)
- Made in Colombia.

Regulator® Insulation
Regulator Insulation provides phenomenal compressibility, light weight warmth and moisture transport, whether used alone or as part of a layering system.
| | X-Small | Small | Medium | Large | X-Large |
| USA Sizes | 0-2 | 4-6 | 8-10 | 12-14 | 16 |
| Chest | 32-33 | 34-35 | 36-37 | 38 1/2-40 | 41 1/2 |
| Waist | 24-25 | 26-27 | 28-29 | 30 1/2-32 | 33 1/2 |
| Hip | 34 1/2-35 1/2 | 36 1/2-37 1/2 | 38 1/2-39 1/2 | 41-42 1/2 | 44 |
| Inseam* | 30 | 31 | 31 | 31 | 31 |
Measurements refer to body size, not garment dimensions, and are in inches, unless otherwise noted.
* Inseam will vary depending on style; when lengths are offered, "short" is 30, "regular" is 32 and "long" is 33, unless otherwise noted.
Patagonia Women's R4 Jacket