The rubber is still soft at the toe post, the kind of give that means someone tested it against an actual foot before it went down the runway. Havaianas has made the same flip-flop, more or less, since 1962: two straps, a rice-paddy textured sole, a shape so generic it became the store-brand answer to itself across Brazil and then the world. MM6 Maison Margiela's first collaboration with the brand does not touch that shape so much as multiply it. The line's numeral fixation, the six that shows up in tag placement, in seam counts, in collection numbering since the label launched in 2015, gets applied here as a literal design constraint: a Slim 6Toe with an extra digit built into the rubber, and a Top 6Layers that stacks six soles into a single platform.
This is beachwear retail meeting a fashion house that has spent a decade treating footwear as a research problem, and the two vocabularies do not fully merge here so much as sit side by side. The Slim 6Toe is a retail item, sized and priced for a store. The Top 6Layers, the six-layer platform version, appeared exclusively on the runway, a piece built for photographs and not for shelves. That split is not new to MM6, whose past collaborations with Salomon and Church's have followed a similar shape: one silhouette that ships, one that exists purely to make the case for why the collaboration matters at all.
What makes the Havaianas pairing distinct from MM6's sneaker collaborations is the category it is entering. A flip-flop carries none of the technical credibility that Salomon's trail shoes or Church's leather goods bring to a partnership; its entire cultural value is its cheapness and ubiquity. Putting a sixth toe on it does not borrow performance credentials, it borrows recognizability, the same instant legibility that makes a Havaianas a Havaianas on any beach on earth. MM6 is not upgrading the object. It is stress-testing whether its own design language can survive contact with the single most generic silhouette in casual footwear.
The answer, at least on the runway, is that the language holds, because the six-layer platform reads as sculpture before it reads as sandal. Whether the Slim 6Toe holds the same charge once it is sitting in a store next to ordinary Havaianas stock, worn by someone who bought it for a beach trip rather than a fashion statement, is the more interesting and less answered question. Beachwear now carries an art-school signature. Whether the wearer knows to look for it is a separate matter entirely.
The flip-flop has left the beach and entered the vocabulary of collectible footwear. That is the category MM6 has put it in, one runway sole at a time.