
Patagonia Men's Lightweight Insulated Fjord Flannel Shirt
Please Note: All Patagonia products are physically labled in US sizes.
Warmth in a classic, casual flannel.
The Men's Lightweight Insulated Fjord Flannel Shirt blends the softness of brushed cotton with the warmth of recycled polyester insulation. Designed for cooler days, this shirt provides practical warmth with 80-g Thermogreen insulation and a durable water repellent finish. Made in a Fair Trade Certified factory, it combines comfort with environmental responsibility.
Features
- Body fabric made from 100% Cotton in Conversion brushed flannel
- Lining made from 100% recycled polyester taffeta certified by OceanCycle, sourced from coastal communities at risk of plastic pollution, with a DWR finish made without PFCs
- Insulated with 80-g Thermogreen 100% recycled polyester for added warmth
- Two chest pockets with button-closure flaps and two side-entry handwarmer pockets for convenience
- Full-length button-front placket for easy adjustability
- Adjustable cuffs for flexibility in varying weather
- Shirttail hem for versatile styling
Specifications
- Fit: Regular fit
- Claimed Weight: 763 g
- Materials: 4.9-oz 100% Cotton in Conversion brushed flannel (body), 2.2-oz 100% recycled polyester taffeta (lining) 80-g Thermogreen 100% recycled polyester (insulation)
Patagonia Men's Tops and Jackets Size Guide
How To Measure Your Size

Be sure to keep the tape level, and not too tight. Then use the chart as a guide, but allow for some variance based on how you prefer the garment to fit.
CHEST: Measure the full circumference of your chest just below your armpits.
WAIST: Find the top of your hip and measure the full circumference around your body.
Size Chart
Size | Chest (cm) | Waist (cm) |
---|---|---|
XX-Small | 79 - 83 | 66 |
X-Small | 86 - 89 | 71 |
Small | 89 - 94 | 74 - 76 |
Medium | 96 - 101 | 79 - 84 |
Large | 106 - 111 | 86 - 91 |
X-Large | 117 - 122 | 97 |
XX-Large | 127 - 132 | 102 - 107 |
XXX-Large | 137 - 142 | 117 - 122 |
Measurements refer to body size, not garment dimensions.