Extreme Cashmere

Extreme Cashmere is an Amsterdam label founded in 2016, and it is known for genderless, one-size cashmere knitwear organized as a permanent, numbered collection. Every piece carries a Nº number. Instead of a size range, the label offers a catalog of numbered silhouettes that fit the body through cut and proportion.

Extreme Cashmere does not operate on seasonal drops or the divide between menswear and womenswear. It makes the case that one precise sweater, numbered and permanently available, can replace the usual cycle of new colors and sizes.

Behind the brand

Extreme Cashmere was founded in 2016 by Saskia Dijkstra in Amsterdam, in the Netherlands. Before launching the label, Dijkstra spent about twenty years in cashmere production and manufacturing, working with knitwear makers. That experience gave her direct knowledge of the factories and fiber standards that would later shape the collection.

The brand began with one sweater made on her own terms. Dijkstra designed the first garment, the Nº 53 Crew Hop, as an oversized crew neck. The sweater fit almost everyone who tried it. From that observation came the rule of “one size, for everybody and every body.” The cashmere is produced in factories Dijkstra connected with during her manufacturing years.

One size, every body

Extreme Cashmere does not make small, medium, or large. Each silhouette is offered in a single size, and the way it fits depends on the cut. An oversized crew hangs loosely. A fitted crew sits closer to the body. The customer chooses the style that suits their shape rather than a numerical size.

The concept works because fine cashmere jersey is fluid. It drapes and moves with the body instead of resisting it, so one shape can cover a wide range of frames. The sizing question becomes a question of proportion and silhouette. A garment that follows the body takes the pressure off the number inside the label.

The numbered collection

Every Extreme Cashmere piece carries a Nº number. The number identifies a silhouette rather than a rank. The collection is permanent and grows edition by edition. That gives the numbers the logic of a studio catalog. Each number fixes a shape, a collar, and a fit in the customer’s memory.

The Nº 53 Crew Hop is the original design, an oversized crew neck. The Nº 36 Be Classic is a unisex classic crewneck. The Nº 41 Body is a fitted crewneck. A small hand-embroidered flag detail on the cuff or hem marks the colorway and edition. The rest of the sweater stays plain, so the flag reads as the signature rather than a logo.

The cashmere

Extreme Cashmere uses long-fiber Mongolian cashmere. The brand says the longer fiber resists pilling, the surface defect that ages fine knitwear the fastest. That choice matters especially for one-size garments that are meant to be pulled on often and worn close to the body.

Production stays with factories Dijkstra knew from her manufacturing years. The relationship shows in the consistency of the knit. Because the collection is permanent, a style does not vanish after one season. It stays in the line and is joined by new numbered editions over time. The same numbered sweater can be found again years later, made from the same fiber and the same cut.

Extreme Cashmere’s place in the market

Extreme Cashmere sits in luxury knitwear, at the price level of specialist cashmere. It is stocked by leading multi-brand retailers including Net-a-Porter, Mytheresa, and SSENSE. That distribution places it among focused luxury labels rather than mass-market knitwear.

The brand has developed a cult following and regular editorial coverage in fashion and design press, with particular attention on its quiet-luxury knitwear. The label appears in our guide to the best cashmere sweaters for women, and its relaxed silhouettes also place it among the best loungewear brands.

Who Extreme Cashmere is for

Extreme Cashmere is for the person who wants fine knitwear without the sizing conversation. It suits buyers who prefer a permanent numbered collection to a new seasonal edit, and who like the idea of a sweater identified by a number and a small embroidered flag rather than a logo. The customer is someone who would choose one precise cashmere silhouette and wear it until it becomes the default.