Why Does Wool Keep You So Warm In The Winter?

When temperatures drop and frost sparkles on the ground, few things feel as comforting as pulling on a warm layer of wool. But that cozy feeling comes from more than softness—wool is a remarkably advanced natural material. 

Its fibres act like tiny coil springs, creating millions of microscopic air pockets that trap warm air close to your body. These pockets insulate you much like the padding in a winter coat, yet still allow air to circulate so you stay warm without overheating.

Wool also excels at regulating temperature. As your body warms and produces moisture vapour, the fibres absorb it and release small amounts of heat, keeping you dry and comfortable instead of clammy. This built-in climate control means wool adapts to your activity level as well as the weather around you.

One of wool’s most impressive qualities is that it continues to insulate even when damp. The fibres can hold a surprising amount of moisture without feeling wet, so if you’re caught in drizzle or brushing through snow, wool still works hard to keep you warm. Its natural breathability also helps reduce odour, since moisture doesn’t sit on the surface of the fabric.

Beyond comfort, wool is a renewable, biodegradable fibre with excellent durability, making it a long-lasting and environmentally friendly choice for winter wear. It’s a perfect example of how nature often creates the best technology—quietly effective, brilliantly engineered, and suited to a wide range of conditions.

Oldfield Outfitters embraces these qualities with a beautifully curated range of wool knitwear and traditional Fair Isle pieces for men and women. Each garment is designed to keep you warm, comfortable, and stylish all winter long.

Ladies Fair Isles sweaters, vests and cardigans – Oldfield Outfitters

Ladies Vintage inspired Knitwear – Oldfield Outfitters

Fair Isles Sweaters – Oldfield Outfitters

Knitwear Vintage 1930s style knitwear, Fair Isle , knitted in Shetland – Oldfield Outfitters