MITSUKO | CAREFREE AND STYLISH MIDI DRESS
Free home delivery anywhere in Japan
30-day happiness guarantee
Secure checkout – Visa, Mastercard & Amex
Looking for a dress that does all the work for you?
Meet the Siena, a crisp white shirt dress with a smart navy geometric line print. Designed to feel easy from morning to evening, it is the kind of shirt dress you put on and instantly feel ready for the day.

Why You'll Love the Siena Dress
✔ Smart geometric print: Navy lines and curves on white give a polished, modern look for lunches and days out.
✔ Smart collared neckline: The classic collar and buttoned front give a neat, polished look without any fuss at all.
✔ Roll up sleeves: Sleeves can be worn turned up to the elbow for a relaxed and easy finish.
✔ Relaxed A line: The loose A line shape skims the body comfortably and never feels tight or restrictive.
✔ Flattering knee length: Falling just below the knee, it looks smart with trainers, sandals or ankle boots alike.
Specifications
- Type: Midi shirt dress
- Print/Design: White with a navy geometric line print
- Neckline: Collared with a buttoned front
- Sleeves: Elbow length sleeves, worn rolled up
- Fit: Relaxed A line
- Length: Falls just below the knee
- Sizes: UK 8/10 (S) to UK 22/24 (5XL)
Free home delivery
Free delivery to any address in Japan. Orders placed before 11:30 PM are shipped the next business day; average delivery time is 8 to 12 business days after processing. You'll receive a tracking link by email as soon as your order ships.
30-day happiness guarantee
Not completely happy? You have 30 days after delivery to request a return. Items must be unused and in their original packaging. See our Return Policy for the full details.
24/7 customer support
Our team is available 24 hours a day, 7 days a week. Email us at support@mitsuketatokyo.com – we usually reply within 12 to 24 hours.
TRUSTED BY THOUSANDS ACROSS JAPAN
Thousands of women across Japan already shop with us. Quality you can feel, timeless style you can wear every day, free home delivery and a 30-day happiness guarantee – that's why they keep coming back.
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Frequently asked questions
Can I return an item if it doesn't work out?
Yes. You have 30 days after delivery to request a return. Items must be unused and in their original packaging. Return shipping is paid by the customer unless the item arrived damaged or incorrect.
What payment methods do you accept?
We accept credit cards (Visa, Mastercard, American Express), Apple Pay and Google Pay. All payments are charged in Japanese yen (¥) and protected with SSL encryption.
How do I track my order?
As soon as your order ships you'll receive an email with a tracking link. You can also use our Track Your Order page.
How do I pick the right size?
Click "Size Chart" next to the size selector for the measurements in cm and the matching Japanese size (号). Our clothing follows European sizing, which is generally about one size larger than Japanese sizing (our S ≈ JP 9号, M ≈ JP 11号, L ≈ JP 13号). Between two sizes? Choose the larger size for the most comfortable fit.
How long does shipping take?
Orders are processed within 1 to 3 business days (order before 11:30 PM and we ship the next business day). Average delivery time is 8 to 12 business days after processing.
Is shipping free?
Yes – shipping is free on every order to Japan, with no minimum purchase.
How do I get in touch?
Email us at support@mitsuketatokyo.com or use our contact form. We reply within 12 to 24 hours, 7 days a week.