About The Sei

The Sei is a Los Angeles based luxury ready to wear brand founded in 2020 and proudly women and minority owned. Created by a team of four designers who previously worked together at Michelle Mason, The Sei was born during a pivotal moment and transformed uncertainty into a refined vision for modern womenswear.

Built on collaboration and creative diversity, The Sei designs thoughtful pieces made for women by women. Each collection reflects a balance of structure and fluidity, pairing polished classics with sculptural silhouettes that feel powerful yet effortless.

Known for clean tailoring, draped dresses, elevated knitwear, and modern statement pieces, The Sei blends masculine restraint with feminine sensuality. The result is contemporary luxury designed to inspire confidence, versatility, and timeless sophistication across generations.

At RTND, we curate The Sei for women drawn to directional silhouettes and refined minimalism. These are pieces that feel intentional, elevated, and distinctly modern.

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