About us

Founded in Amsterdam by Sophie Rialland in 2022, 12jan.vier is a versatile slow fashion brand creating statement pieces designed to suit any event or occasion. Inspired partly by the bold elegance of the 70s, our collection of jumpsuits is a blend of casual chic styles crafted and produced in Portugal. Each piece is thoughtfully designed to be worn across all seasons, seamlessly adapting to the dynamics of life.

Under the creative direction of its founder, 12jan.vier offers luxurious yet wearable jumpsuits that embody both function and elegance. Every piece reflects a commitment to responsible fashion, where design and sustainability coexist in perfect harmony. 

Our purpose is to make slow fashion accessible while empowering women to feel confident, beautiful, and ready to conquer the world—preferably in one of our signature jumpsuits.