The Kiko Kostadinov x Asics Ilargi FF is the rare fashion collaboration that earns its provocation. Announced ahead of its February 23rd, 2026 global release, the split-toe running shoe fuses a tabi construction with genuine performance engineering – and carries with it nearly a century of Japanese athletic history.
A design that has been here before
There is a tendency, in fashion, to treat the unconventional as novelty. The Ilargi FF resists that reading. Its defining feature – a split-toe silhouette separating the big toe from the rest of the foot – has roots that predate streetwear culture entirely. In 1953, Asics’ forerunner Onitsuka released the Marathon TABI, a performance runner modeled after traditional Japanese tabi footwear, complete with rubber soles and a durable canvas upper. That shoe was built for distance. The Ilargi FF is built on that memory.
Kostadinov, who has spent nearly a decade reshaping what a high-fashion partnership with a Japanese athletics brand can look like, brings the tabi construction back to its original domain: the running shoe. It is a historically grounded provocation – the kind Asics can sustain without apology. Issey Miyake and Asics have similarly tested the outer limits of performance footwear, but the Ilargi FF is arguably more legible, more wearable, and more culturally loaded.
Performance architecture, not fashion theater
What distinguishes the Ilargi FF from more decorative collaborations is what sits beneath the surface. The midsole is built on Asics’ FlyteFoam technology – the same cushioning platform the brand deploys in its genuine running lineup – and the knit upper prioritizes lightness and fit. This is not a performance runner impersonating fashion. It is, more precisely, both things at once. Available in black and a black-and-blue colorway at $230, the shoe positions itself above general-release territory without quite reaching collector-only altitude.
The tabi split-toe, long associated with runway brands like Maison Margiela, here reclaims its athletic origin. That is a quiet but significant correction – the sort of contextual reframing that Kostadinov regularly pursues across his collaborations, whether reworking denim archetypes or athletic references into something sharper and more considered.
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A campaign as destabilizing as the shoe
The marketing is no afterthought. American artist Ryan Trecartin has produced a three-act episodic campaign titled Buckle Yup, filmed across Tokyo and Okinawa with fifteen local actors and an original musical score. The audio was assembled using machine learning software – artificial voices layered into something intentionally uncanny. The first act, Cue Shoes, debuts February 23rd in Los Angeles, with subsequent events planned for Tokyo in April and London in July. It is a campaign that refuses easy comprehension, which is exactly the point. When fashion meets performance footwear at the highest level, the storytelling matters as much as the silhouette.
The Ilargi FF was first shown during Paris Fashion Week in June 2025 before any retail details were confirmed. That gap – between cultural event and commercial object – is itself a statement. The shoe is available through kikokostadinov.com and the brand’s Los Angeles, Tokyo, and London stores beginning February 23rd.