Founded in the heart of Antwerp’s creative scene, Our Sister is dedicated to creating garments that merge heartfelt textures with vibrant, well-balanced colors.

The brand embraces the challenge of maintaining individuality while standing out in a crowded landscape, combining high-quality, sustainable fabrics with bold, distinctive details. Partnering with ethical factories, Our Sister reflects a commitment to both style and sustainability.

As the female counterpart to Castart—a brand known for infusing playfulness and diversity into men’s fashion—Our Sister shares resources and values with its sibling while celebrating its unique identity.

The result is a collection that offers standout fashion for women, men, and non-binary individuals, harmonizing creativity with ethical craftsmanship