In her book-length love letter to the color, Bluets, Maggie Nelson confesses to falling for blue the way one falls for a person, helplessly and completely. It’s easy to sympathize this summer, because Simon Porte Jacquemus has bottled a particular shade of it, the blue of a pool gone glassy in the late afternoon, and poured it over a shoe. He’s reunited with Timberland for a second act set to be every bit as coveted as the first. The new Timberland x Jacquemus Authentic Boat Shoe arrives in a turquoise hue recalling Lagoon Blue, and the name earns its keep. This is tonal dressing at its most satisfying: blue leather, blue lining, blue Tree logo, blue laces, right down to the delicate metal charms and aglets that Jacquemus finishes like fine jewelry. The result is monochrome pursued with conviction, a single color explored to its last quiet gradation.

The Color Story Worth Knowing

Here’s where the fashion mind starts to hum. That Lagoon Blue is anything but arbitrary. It stepped straight off the runway of Jacquemus’ Spring/Summer 2027 show, titled Le Bonheur, French for happiness, a fitting christening for a palette this sunny. Simon drew the tone from the geometry of Art Deco architecture and the exuberant 1980s Memphis movement, that gloriously loud world of primary shapes and popsicle brights. Consider it a small lesson in design history, quietly laced onto your feet. If it feels faintly familiar, that’s because the pair debuted their first boat shoe last April in a banana-yellow colorway that sold out in a heartbeat. That one whispered Riviera picnic. This one dives headfirst into the deep end, the same three-eye silhouette in a cooler register.

Why the boat shoe is having a moment

The Jacquemus + Timberland Boat Shoe, $ 250

The boat shoe’s return is a genuine cultural shift. After seasons of sneaker supremacy, fashion has tilted toward pieces with a past, and Timberland’s has impeccable credentials: it launched in 1978 and has drifted from the docks of New England to the coves of the South of France ever since. The chunky lug sole is the masterstroke, lending the preppy classic a rugged, faintly subversive edge that keeps it on the right side of nostalgia. Best of all, these are made to be lived in. That lug sole invites a little scuffing, a little salt water, a little genuine wear. Style them with slouchy trousers or a fluid skirt, or step into them straight off a boat you needn’t even own. Le bonheur, precisely as the runway promised.