What Is Cashmere? A Guide to the World’s Most Cherished Fibre

Cashmere has long been the quiet symbol of refinement in fashion. Soft yet structured, warm without weight, it carries a sense of ease that never shouts for attention. It’s the fabric you feel before you notice how beautifully it drapes. But what truly makes cashmere different from ordinary wool, and why does it hold a place among the most luxurious materials in the world?

The Origin: Born in Harsh Climates

True cashmere comes from the undercoat of cashmere goats, found in the cold desert regions of Inner Mongolia. These goats develop an exceptionally fine down layer to endure temperatures that sink far below freezing. Harvested by gentle combing during the natural shedding season, this down becomes the base of one of the most precious fibres in luxury knitwear.

Why Cashmere Feels Different

Unlike traditional sheep’s wool, cashmere fibres are much finer, longer, and softer to the touch. This refined structure allows the fibre to trap air, giving it an exceptional level of warmth while remaining feather-light. The result is a rare balance: insulation without bulk, elegance without effort.

Advantages of Cashmere

• Softness that doesn’t diminish with time

• Warmth comparable to heavy wool without the added weight

• Natural breathability for year-round comfort

• Longevity when cared for correctly

• A refined texture that enhances knit structure and drape

How Cashmere Is Used

Cashmere lends itself naturally to pieces that sit close to the skin—jumpers, cardigans, scarves & shawls, and even delicate knitwear details that frame the silhouette. Luxury outerwear often incorporates baby cashmere or double-faced cashmere panels for structure with an incredible, buttery feel.

Ethical & Sustainable Sourcing at Piazza Castello

Luxury is meaningful only when crafted with integrity. At Piazza Castello, every cashmere piece is made using fibres certified by the Good Cashmere Standard® (GOTS). This ensures:

• Responsible animal welfare

• Traceable sourcing in Inner Mongolia

• Support for herders and their communities

• Sustainable grazing practices that protect fragile grasslands

This approach respects both the heritage of the craft and the natural environment that makes cashmere possible.

A Natural Fibre Made to Last

Cashmere is not designed to be disposable. Unlike synthetic materials, it improves with wear—softening, shaping itself to your body, and becoming a personal garment over time. It is a quiet investment in quality, meant to be treasured and cared for.

If treated with the same respect with which it is made, cashmere can last a lifetime. Discover how to care for it properly in our dedicated cashmere care guide.