Openness to Pheromones | Ultra-Fine Knits by Lithuanian Designers
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2026-09-25
The impact of clothing on health emerged as a subject of widespread public fascination in the late nineteenth century.
Among various theories proposed during this era, one of the most successful was the "Sanitary Woollen System," developed by German scientist Dr. Gustav Jäger.
As a professor of zoology and anthropology, Dr. Gustav Jäger approached clothing primarily as a functional protective layer. Analyzing its interaction with the human body, he reached the (partially valid) conclusion that optimal health required wearing close-fitting knitted wool directly against the skin.
While this concept may seem ordinary today, it provoked a major backlash in the 19th century, when undergarments were woven almost exclusively from boiled linen or rigid cotton.
Despite early criticism, the "Sanitary Woollen System" rapidly gained a devoted following. In Great Britain, where reform movements such as the "Rational Dress Society" were actively advocating pragmatic sartorial shifts, Dr. Jäger's ideas spread swiftly.
„Women should wear just one garment (of pure wool)“, wrote playwright George Bernard Shaw—one of Jäger's most vocal advocates—in a letter encouraging a friend to discover the virtues of wool undergarments.
From a practical standpoint, a key reason for the widespread adoption of the "Sanitary Woollen System" was its discreet integration into existing wardrobe standards without defying social decorum.
Though the system encompassed an entire wardrobe—from headwear to hosiery—its core garments relied on form-fitting long-sleeved wool tops and full-length drawers, worn either together or as separates.
To manufacture these knitted base layers, Jäger's system adopted an innovative technical approach: adapting fine-gauge cotton knitting machinery to produce remarkably thin, elastic wool textiles. These garments were virtually seamless, rendering them invisible under structured outerwear and fine evening gowns alike. Jäger wool knits were routinely worn even beneath the delicate "Directoire" style gowns revived in that period.
Much like today, a primary objection to wearing wool base layers was the tactile concern over skin irritation. Dr. Gustav Jäger addressed this directly, specifying ultra-fine, specially processed merino and cashmere fibers, regarding any mild cutaneous stimulation as a beneficial physiological effect.
Within a short period, Dr. Gustav Jäger's advocacy transformed base-layer culture across Britain, quickly spreading throughout Europe and America.
By the turn of the 20th century, over 40 percent of affluent women (and roughly 5 percent of the general population) wore wool cardigans, camisoles, and base layers.
Certain aspects of Dr. Jäger's ideology—such as his firm belief that plant-derived textiles like linen and cotton were inherently harmful—appear hopelessly outdated today. However, his core tenets regarding the physiological benefits of natural wool have only been validated by time.
As a researcher whose work also contributed to early concepts of pheromones, Jäger's insights regarding breathable, natural, undyed wool fibers remain remarkably progressive today.
In this edition, we have selected three fine-gauge wool knits ideally suited for layering under blazers and jackets, delivering the exceptional comfort that only natural wool base layers provide.
All Fine Knits by Lithuanian Designers
Delightful Illusions
The name "Lokea" draws inspiration from Loki, the trickster deity of Norse mythology. Much like Loki, famed for shape-shifting and optical illusions, this knit offers more than meets the eye at first glance.Featuring a minimalist, smooth-knit design, "Lokea" is exceptionally lightweight and slides effortlessly under a tailored blazer or light jacket. Raglan sleeves ensure unrestricted movement and subtle comfort.
Its composition honors Dr. Jäger's high standards: 15% cashmere and 85% fine merino wool.
THREE IDEAS: The Fox's Autumn Curation
Three curated pieces capturing the refined mood of early autumn.- Fine Jewelry: FORM Gold-Inlaid Diamond Earrings
- Knit Set: ROBERTA Cashmere Skirt & Sweater Set
- Silk & Wool Accessory: Burgundy Silk & Wool Oversized Scarf
Weightless Proximity
This fine knit feels completely weightless against the body.Exceptionally thin, soft, and body-hugging, it layers comfortably under delicate garments. A high collar finished with subtle micro-buttons and elongated sleeves add refined architectural details.
Composition: 100% fine merino wool.
Note from the Fox: Photography hardly does justice to the richness of this shade and its flattering, comfortable fit around the neckline.
Essential Foundation
This piece embodies the ideal fine white crewneck sweater. Spun from a gentle blend of merino wool and cashmere, its classic round neck layers effortlessly whether worn solo or beneath tailored outerwear.Balanced proportions highlight its clean silhouette, while noble fibers deliver quality you can both see and feel.
Composition: 10% cashmere, 90% merino wool.
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