The Best Natural Fibres for Women's Winter Coats

The fabric is the foundation of a winter coat. Natural fibres can offer warmth, breathability, softness and a depth of texture that is difficult to reproduce with a purely synthetic shell. The important question is not simply whether a coat contains a natural fibre, but which fibres are used and why.

Wool: the foundation of classic outerwear

Wool is exceptionally useful for coats because it insulates while retaining enough body to create structure. It works in tailored silhouettes, wrap coats and heavier winter fabrics, and it combines well with other luxury fibres.

Our coat collection uses wool as the structural base across the range.

Cashmere: softness and refinement

Cashmere is prized for its softness and insulating ability. In outerwear, it is often most effective as part of a blend, where it can soften the handle of a fabric without sacrificing the resilience needed for a coat.

The Shelley Coat, for example, uses a double-faced wool and cashmere fabric to create a soft, enveloping wrap silhouette.

Camel hair: warmth with a smooth handle

Camel hair is naturally insulating and has a distinctive softness that works beautifully in winter outerwear. The fibre can bring warmth and a refined surface to a wool blend.

The Brontë Coat in Camel combines wool, camel hair and silk, creating a substantial long coat with a smooth finish and tailored structure. Explore both colourways in our Camel Hair Coats collection.

Alpaca: plush warmth without excessive bulk

Alpaca is valued for warmth, softness and its tactile surface. Suri alpaca in particular has a lustrous character that gives a coat a rich, plush appearance.

The Austen Coat blends Suri alpaca with wool so that the garment has both softness and shape.

Silk: not just for summer

Silk may be associated with lightweight clothing, but in a coat blend it can help create a smoother, more refined handle. A relatively small percentage can noticeably influence how a fabric feels and drapes.

Which fibre is best?

There is no universal answer. Wool is excellent for structure; cashmere for softness; camel hair for insulation and smoothness; alpaca for plush warmth; silk for refinement. The most interesting coat fabrics often combine fibres so that each contributes something different.

When comparing coats, check the full composition rather than focusing on a single headline fibre. Then consider construction, lining, length and fit. Read our comparison of alpaca vs wool and our guide to camel hair vs cashmere for a deeper look at the differences.