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The Ultimate Dress Tee:
A Pursuit of Pure Sophistication.Crafted in collaboration with one of Japan’s premier circular knitting workshops, this piece is the result of our search for true excellence. The fabric features a brilliant, silk-like luster and an exquisite touch that feels incredible against the skin. It is the perfect, elegant choice for layering under a tailored jacket.
- Fit Note: Due to the natural elasticity of knitwear, please allow for a slight variance of approximately 0.4 – 0.8 inches (1–2 cm) in measurements.
- Material: 100% Cotton
- Care: Machine washable. Please refer to the care label attached to the garment for further instructions.
Free Express Shipping: We provide free shipping to the USA on all orders via DHL.
Delivery Time: Most orders arrive within 5-8 business days.
No Hidden Fees: All prices include customs duties and taxes. You will not be charged any additional fees upon delivery.
Tracking: You will receive a tracking number as soon as your order is dispatched from our Osaka workshop.
- Free US Returns: No international shipping hassles. Returns are handled at our dedicated US return center, and we cover all return shipping costs.
- 30-Day Window: Items must be returned within 30 days of delivery in their original, unwashed, and unworn condition with tags attached.
- Handling Fee: To minimize our carbon footprint and support our small-batch artisanal workshop, returns of 4 items or more from a single order will incur a $20 USD handling fee. This fee will be deducted from your final refund.
- Order Cancellations: If you wish to cancel your order after confirmation, please contact us at support@moon-castle.jp within 3 hours of placing your order. This allows our workshop to manage our shipping schedule efficiently.
- Simple Exchange Process: To get your new size or color as quickly as possible, we follow a "Return & Re-order" system. Simply return your original item for a full refund and place a new order at your convenience.
- Final Sale: Sale items are final sale and not eligible for returns or exchanges, except in cases of proven defects.
How to start a return:
- Contact us at support@moon-castle.jp with your order number.
- We will email you a pre-paid UPS/USPS shipping label immediately.
- Drop off the package at any local drop-off point. Once received at our US center, we will process your full refund
The Ultimate Dress T-Shirt for Adults: Silk-Like Touch and Sophisticated Elegance

This exceptional fabric offers a luxurious, silk-like sheen and an unparalleled feel against your skin from the very first touch.
At the heart of this material is "Suvin Cotton," often called the "gem of cotton" due to its rarity and superior quality.
We meticulously blend the cotton waste generated during Suvin Cotton spinning (recycled Suvin) with high-quality organic extra-long staple cotton at the raw fiber stage before spinning.
This special yarn is then carefully knitted on a very limited number of machines in Japan, using an ultra-high density super high gauge (36G). This process achieves an exquisite texture and exceptional durability.
Perfect for Layering Under a Jacket
The neckline is designed with a superb balance, neither too tight nor too open. This makes it an ideal choice for layering elegantly under a jacket.

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