I designed my wedding dress. It became a brand.
I’m Shiyao Tang, founder of Sì.
I used to build products in tech, but I left to take a risk, to design something for the moments that mattered most. When I couldn’t find a wedding dress that felt right, one that was dramatic yet simple, elevated but effortless, poetic and comfortable all at once, I decided to build it myself. That dress became the quiet beginning of Sì.
It began as a search for what didn’t exist.
After years of building products in tech and luxury commerce, I learned how to make the digital feel human, but nothing in my wardrobe did. Everything felt divided between fast fashion with no soul and luxury too distant to live in. I wanted something intentional, beautiful yet simple, dramatic yet effortless.
So for my wedding I designed my own dress, sculptural and grounded, alive in motion. What began as an experiment became a proof of concept that clothing could hold both strength and softness, presence and ease. That idea became Sì..
Silk isn’t just luxury, it’s story.
A material once reserved for emperors, traded along the Silk Road, layered into ancient armor, silk has always embodied duality: delicate and unbreakable. At Sì., we design within that tension. Soft in movement, strong in presence. Each piece exists between opposites: sculptural yet fluid, minimal yet expressive, sensual yet disciplined. The most powerful forms are the quiet ones that whisper instead of shout.
Every design begins with fabric.
Our process begins with fabric. We source pure mulberry silk from heritage mills that preserve traditional weaving and finishing techniques. Each meter is inspected for natural sheen, hand-feel, and longevity. No synthetics, no shortcuts. We drape silk like clay, refine cuts for movement, and fit with the precision of tailoring. Bias cuts, hidden seams — every detail is considered.
We prototype slowly, iterating until form, function, and comfort align. We design not for seasons, but for continuity — pieces meant to endure and evolve with you.
In an age of speed, we build slowness.
Sì. exists for those who seek what doesn’t yet exist — for those who find beauty in restraint, strength in softness, and meaning in the everyday. True luxury isn’t about excess; it’s about intention. Every piece we create is a study in balance — caressing armour for the rhythm of modern life.
Designed to move with you. Made to last.
The Making of Sì.
THE SPARK
THE MAKING
THE REFINEMENT
THE BEGINNING
BECOMING
THE SPARK
The search for my wedding dress revealed something larger than a single moment — a gap that many of us feel but rarely name. I couldn’t find a piece that was both sculptural and simple, dramatic yet comfortable, beautiful enough to remember but effortless enough to live in.
So I started building what I couldn’t find — a dress that balanced form and feeling, strength and softness. The process became a quiet experiment in how clothing could move with the body, not against it; how beauty could feel both striking and familiar.
That philosophy became the foundation of Sì. — to create pieces that carry that same harmony, so you can feel both at ease and elevated, protected and seen.
THE MAKING
Moodboards turned into digital sketches. We cut the first pattern, pinned and unpinned seams, tested every fold. We tested each fabric with quiet rigor. We draped silk like clay, refining balance and structure through patient iteration. Every adjustment was guided by one idea: clothing should move beautifully and feel effortless to wear. We tested how silk caught light, how it draped when you walked, how it rested against skin for hours.
That attention to ease and movement became part of our design language.
THE REFINEMENT
The first sample arrived. Beautiful, but imperfect. We refined obsessively: softening lines, sharpening seams, pivoting when original ideas proved impossible while maintaining both beauty and function.
We refused to compromise. Every change taught us restraint. The dialogue between vision and material became Sì.’s design language.
THE BEGINNING
I wore the dress at a château in France — a convergence of cultures, textures, and light. The silk caught every reflection as voices intertwined in different languages. People didn’t ask where it was from, but what it was. In that moment, I felt something I couldn’t yet name. It was a quiet beginning. The night marked the start of Sì.. Silk became a universal language, where Chinese heritage, reimagined through contemporary form, spoke without explanation.
BECOMING
We began developing our first small run with the same philosophy:
Sculptural silk for everyday rituals. Quiet design, intentional making, modern heritage.