Zara Larsson’s fashion label MAIN ROSE has joined forces with London-based brand NIIHAI for a swimwear collaboration that blurs the line between beachwear and everyday dressing.

Rather than creating bikinis reserved solely for holidays, the collection is designed to become part of your everyday wardrobe. Built around versatility, each bikini top and bottom is sold separately, allowing wearers to mix and match silhouettes, colours, and cuts to create countless styling combinations.

The pieces are intended to move seamlessly from the pool to the streets, encouraging layering under shirts, pairing with tailored trousers or skirts, or styling as statement tops. The result is a collection that treats swimwear as another fashion essential rather than a category confined to vacations.

The collaboration also feels especially authentic. Larsson had been wearing NIIHAI long before the partnership came together, giving the project a personal connection that extends beyond the usual celebrity-brand collaboration. According to MAIN ROSE, the capsule represents a natural meeting between Larsson’s creative vision and a label that had already become part of her personal style.

Founded in London in 2019 by Rosie Williams, NIIHAI has built a reputation for combining Mediterranean influences with urban styling and playful sensuality. Those signatures carry through the collection, resulting in minimalist yet fashion-forward swimwear that feels equally at home by the water or layered into an everyday outfit.

Launching on August 5, the capsule continues MAIN ROSE’s growing swimwear offering while embracing NIIHAI’s styling philosophy of flexibility and self-expression. With interchangeable separates and endless outfit possibilities, the collaboration encourages wearers to rethink how and where they style their swimwear.