Under Armour and Marine Serre Redefine Performance Through Fashion

Under Armour’s 30th anniversary arrives with a clear statement: performance gear now has to carry a fashion point of view. This season sees the exciting Under Armour Marine Serre collaboration taking center stage.

The brand’s debut capsule with Marine Serre shows how a baselayer, archive runner and classic black‑and‑white kit can become a story about movement, identity and style, not just sweat management.

Design and color/details

The Under Armour x Marine Serre capsule builds from a stripped-back, high-impact palette. Lean lines, sharp contrast and a focus on black and white keep the pieces tight and intentional, echoing elite sport where every detail has a purpose.

Under Armour’s HeatGear tech underpins the base garments, so even the most fashion‑forward looks still work as true performance layers when training intensity spikes.

A bespoke print merges Marine Serre’s crescent Moon with Under Armour’s heartbeat logo. That one graphic tells the whole story: a fashion house rooted in discipline and a performance brand built on relentless progress.

Placed across baselayers and key tops, it turns core training pieces into instant identifiers for the collaboration.

Where performance begins: the baselayer

The baselayer is the heart of this project. For Under Armour, it is the origin story: the piece that launched the brand and redefined how athletes manage heat, sweat and compression.

For Marine Serre, the “Second Skin” baselayer with its Moon pattern is the house’s signature canvas and a symbol of its identity.

In this capsule, the two ideas converge. The garment closest to the body stops being “just” functional. It becomes a symbol of where movement starts, where discipline lives and where performance memories sit.

Marine approaches it with the instincts of both player and couturier, treating seams, stretch and pattern placement as tools to literally shape how the body moves and looks in motion.

Shaping movement through fashion

Marine Serre has built her reputation by taking existing codes and rebuilding them into something new. Here, she does the same with performance sportswear.

She respects Under Armour’s 2000s archive and technical legacy, but she edits it with the restraint and clarity of a modern fashion house. Cuts are clean, silhouettes skim rather than shout, and every panel has a job.

Her background as a former professional tennis player shows up in the way the pieces frame the body.

They are designed for rotation, sprint, reach and recovery, yet they still read as precise, architectural garments. Sport becomes a universal language of the body, and clothing becomes the grammar that shapes it.

Archive runners and sculptural footwear

The capsule also reaches into Under Armour’s archive to revive the UA Proto Speed II for the first time since the late 2000s.

The shoe keeps its layered textile base and sculptural leather paneling, but gains a co-branded silicone logo on the toe and vamp. It feels nostalgic without being a straight retro.

On foot, the Proto Speed II slots into the current taste for chunky, tech‑driven runners that work in both performance and city looks.

The Marine Serre touch gives the silhouette sharper lines and artful tension between smooth leather and layered mesh, turning an old performance runner into a modern fashion object.

Launch, access and why it matters

The limited-edition capsule launches June 5 on marineserre.com, at select Marine Serre stores, and through an immersive pop‑up in Paris from June 5–7.

The Rue de Turenne space will stage the collection as an installation where sport energy meets craft and art, before the collab rolls out globally later this summer on UA.com.

For athletes, this project shows that you no longer have to choose between serious performance and directional style. For fashion fans, it proves that technical gear can carry the same emotional charge as a runway look when a designer treats it with respect.

And for the footwear and apparel industry, Under Armour x Marine Serre is another clear sign that in 2026, performance alone is not enough how you shape, frame and storytell that performance through fashion is what truly moves culture.