Core Warmth, Maximum Freedom

The Patagonia M’s R1® Air Vest delivers lightweight warmth and breathability without holding you back. Designed for high-output pursuits in cool conditions, this technical fleece core-layer regulates temperature while keeping your arms free for movement. Built from 100% recycled polyester with a compressible zigzag-knit texture, it’s the perfect balance of performance, packability, and everyday versatility.

Key Features

• Fabric: 100% recycled polyester jacquard fleece with hollow-core yarns for warmth, breathability, and quick-drying performance

• Breathability: Zigzag-knit pattern enhances airflow while minimizing bulk

• Design: Slim-fit, full-zip vest prioritizes mobility and layering versatility

• Seams: Offset shoulder seams prevent chafing under pack straps

• Pockets: One zippered left-chest pocket and two low-bulk front pockets for essentials

• Binding: Quick-drying woven binding at armholes and hem for improved fit and stretch

• Weight: 241 g (8.5 oz)

• Origin: Made in Sri Lanka

• Fair Trade Certified™: Supporting better pay and safer conditions for the people who made it

• Style Number: 40285

Summary Box

• Product: Patagonia M’s R1 Air Vest

• Material: 100% recycled polyester jacquard fleece

• Features: Lightweight, breathable, slim fit, offset seams, multiple zip pockets

• Weight: 241 g (8.5 oz)

• Style No.: 40285

• Made in: Fair Trade Certified™ factory, Sri Lanka

Summary:
Patagonia M’s R1 Air Vest delivers breathable, quick-drying warmth with recycled fleece, slim fit, and packable design—ideal for active layering in cool conditions.