Breathable Warmth for Moving Fast

The Patagonia M’s R1® Air Zip-Neck is built for those who push hard in cool conditions. Lightweight, quick-drying, and exceptionally breathable, this technical fleece manages warmth without slowing you down. The slim-fit design layers easily, while the quarter-zip neckline offers instant ventilation during high-output activity. Made with 100% recycled materials, it’s a go-to layer for mountain pursuits, trail runs, or everyday adventures.

Key Features

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

• Breathability: Zigzag-knit texture increases airflow, compressibility, and reduces bulk

• Fit: Slim fit designed for active layering and freedom of movement

• Neckline: Quarter-zip allows for easy venting and temperature regulation

• Seams: Offset shoulder seams eliminate pack-strap chafing

• Pocket: One zippered left-chest pocket for small essentials

• Cuffs & Hem: Quick-drying woven binding at cuffs and hem for improved comfort and durability

• Weight: 298 g (10.5 oz)

• Origin: Made in Sri Lanka

• Fair Trade Certified™: Supporting the people who made this garment with fair wages and safer conditions

• Style Number: 40246

Summary Box

• Product: Patagonia M’s R1 Air Zip-Neck

• Material: 100% recycled polyester jacquard fleece

• Features: Lightweight, breathable, quarter-zip venting, slim fit, chest pocket

• Weight: 298 g (10.5 oz)

• Style No.: 40246

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

Summary:
Patagonia M’s R1 Air Zip-Neck delivers breathable, quick-drying warmth with recycled fleece, slim fit, and quarter-zip venting for active performance in cool conditions.