Lofted Warmth for the Coldest Days

The Patagonia W’s Thermal Weight Zip Neck is built to keep you moving in the harshest cold. Made with Polartec® Power Grid® fleece, this breathable, lofted baselayer traps heat, wicks moisture, and dries quickly to keep you comfortable in variable conditions. With thoughtful seam placement, underarm gussets, and thumb loops, it offers all-day mobility whether layered under a shell or worn solo on high-output pursuits.

Key Features

• Fabric: Polartec® Power Grid® (with HeiQ® Pure odor control) combines warmth, breathability, moisture-wicking, and odor resistance

• Interior: Open-grid pattern next to the skin enhances loft, insulation, and airflow

• Zipper: Long center-front zip allows venting; backed by kissing welts for low-bulk comfort

• Seams: Offset shoulder seams prevent pack-strap chafing; flatlock seams reduce irritation

• Mobility: Full underarm gussets provide unrestricted motion; low-profile elastic thumb loops secure sleeves

• Hem: Drop-tail hem increases coverage for active use

• Collar: Self-fabric backing with neck tape adds comfort; locker loop for easy hang-drying

• Weight: 139 g (4.9 oz)

• Origin: Made in Colombia

• Fair Trade Certified™: Supporting better pay and safer working conditions

• Style Number: 43662

Summary Box

• Product: Patagonia W’s Thermal Weight Zip Neck

• Material: Polartec® Power Grid® fleece with HeiQ® Pure odor control

• Features: Lofted warmth, venting zip-neck, gusseted mobility, thumb loops, drop-tail hem

• Weight: 139 g (4.9 oz)

• Style No.: 43662

• Made in: Fair Trade Certified™ factory, Colombia

Patagonia W’s Thermal Weight Zip Neck delivers lofted warmth, breathability, and odor control with Polartec® Power Grid® fleece for cold-weather layering comfort.