Duc Siegenthaler is a Paris-based designer whose work explores the ambiguity of identity. His perception of masculinity and femininity is fluid. He embraces these undefined spaces and transforms them into a singular field of expression.

Of Chinese and Vietnamese origin, and adopted by a multicultural Swiss family, his personal journey is marked by tensions between heritage, gender, and sexuality — shaping an intimate search for belonging and otherness.

His practice is rooted in this plurality, with clothing as a tool for transformation and self-affirmation. Blending tailoring, modular construction, and street influences, he creates hybrid pieces — at once armor and second skin — for a generation in constant flux. Through his silhouettes, he challenges norms and celebrates ever-shifting identities.

This campaign is the result of a quiet alchemy — a dialogue with photographer Léo Arnaud, whose delicate gaze captured the shifting nuances of the SIEGENTHALER realm at dawn and dusk, and with stylist Joanna Dashville, whose intuitive hand shaped each silhouette like a whispered story. Together, they traced the contours of the limenal space — in softness, in shadow, in light.