Use the form below for general questions about SUMI — sizing, fabric, custom requests, press, or wholesale. We read every message and reply within two business days from Tokyo.
If you have already placed an order and your question is about that order — production status, shipping, returns, or address changes — the fastest channel is to reply directly to your order confirmation email. That thread already carries the order number and shipping context, so we can act on it immediately.
For everything else, the form below reaches the studio inbox.
For press features, collaborations, or wholesale enquiries, please use the form above and pick the relevant subject — it routes to the right person at the studio.
Last updated: 2026.