St. MACI is a Sydney-based swimwear brand that embodies an elevated, leisure-centric lifestyle - whether by the poolside or at the beach.

Founded by two friends with a shared passion for quality, sustainability, and empowering all women, the brand draws inspiration from Australia’s beach-loving lifestyle and feminine silhouettes.

We design refined, timeless swimwear that celebrates the beauty of real bodies in all their forms. Bold prints, clean lines, and thoughtfully curated staples come together to create a modern wardrobe of pieces that flatter, feel luxurious, and transcend seasonal trends. Using recycled and dead stock fabrics and natural beads, every style is crafted with longevity in mind.

Sustainability sits at the heart of St. MACI. From responsible production, sustainable fabrics and packaging to mindful design choices, we are committed to shaping a future where fashion respects the environment.