See all the looks from F5 Collection's show at Oslo Runway 2025

Staging its first runway show since 2017, F5 Collections makes a decisive comeback at Oslo Runway

It’s been eight years since F5 Collections last took to the runway. In the interim, the brand quietly receded, weathering both the upheaval of the pandemic and the economic turbulence that followed. Yet even as the spotlight dimmed, the creative fire at its core never wavered. Founded in 2013 by brothers Emil, Benjamin, and Alexander Krystad Marthinsen, F5 has always been a deeply personal project. Now, for spring/summer 2026 – and in step with the 10th anniversary of Oslo Runway – the label makes its long-awaited return, charged with renewed energy.

"The SS26 collection was, as per usual for us, developed quite organically," says Alexander. "We took inspiration from our childhood, visible throughout the prints and plant-dyed garments." The prints, illustrated by the label's design intern Isabel Marín Lund, were used sparingly, but with impact. When they did appear, they dominated: adorning loosely structured skirts and flowing dresses, motifs of flora and fauna evoked the brothers' upbringing, surrounded by nature.

This return to roots extended beyond visuals. Natural dyes – indigo and crushed walnut shells – were used to colour the garments, creating a palette of soft, earthy tones: azure blue, mauve, sage green, and sun-faded beige. These hues weren't guided by seasonal trend forecasts but by memory, instinct, and personal preference. "Our family has always been into gardening and crafts, so it felt very natural to include these elements," Alexander notes.

That same nostalgic sensibility shaped the silhouettes. "We design first and foremost for ourselves," he adds. "We make clothes we'd love to wear and see others wearing too." Boxy, oversized shapes left room for growth – both literal and metaphorical – whilst rope belts and crocheted satchels hinted at the carefree utility of childhood adventures. These accessories, frayed and textured, felt like relics from a treehouse summer – objects ready to hold secrets, snacks, or stones gathered along the way.

What made this comeback particularly poignant was the spirit in which it was achieved. "The show was very much a product of the Norwegian concept of dugnad – a communal effort," says Alexander. "Many people who made our return possible did so as volunteers. We're incredibly grateful for their time, creativity, and hard work."

See all the looks from F5 Collections' SS26 collection below.