After more than a decade in knitwear design and development, Lynn Wei founded Arch4 in 2017. Based in London, the brand combines technical expertise and minimalist design principles to forge a fresh vision for contemporary cashmere.

Specializing in exceptional, fully traceable, and responsibly sourced baby goat cashmere, Arch4 has earned a global reputation for uncompromising quality. With knitwear pieces that span sweaters, dresses, and luxurious loungewear, its styles are defined by softness, warmth, and a distinctly British sensibility.