Wool vs polyester coats: what the fabric label tells you

The fabric label is the most useful thing on a coat listing. It tells you more about warmth, weight and care than any product photo.

What the percentages mean

Wool traps warm air and still breathes, so a coat with a high wool share (roughly 70% or more) usually feels warmer and drapes better. Coats labeled "wool blend" can contain much less wool, so always check the exact percentage.

Where polyester helps

Polyester and nylon add strength and wrinkle resistance and keep the price down. A little synthetic in a wool coat can make it more durable. Fully synthetic coats are lighter and easier to wash, but they are less breathable.

Lining and fill

A smooth lining makes a coat easier to put on over knitwear. For puffer jackets, check whether the fill is down (with a fill power number) or synthetic insulation, which keeps more warmth when damp.

Care

Most wool coats are dry clean only. Read the care label before you buy if you want something machine washable.

Quick checklist

• Exact wool percentage, not just "wool blend"
• Lining material
• Care instructions
• Length and sleeve measurements from the size chart