










































【UNISEX】SHETLAND WOOL CREWNECK SWEATER
Material & Craft: Shetland and Merino wool blend, seamlessly knitted in Japan.
Texture: Authentic rustic texture, comfortably softened for everyday wear.
Silhouette: Classic fit.

Crafted in Osaka, Japan Since 1966:
Every garment is knitted, inspected, and hand-finished by our artisans under one roof. This is the essence of Japanese Monozukuri (craftsmanship)—where uncompromising quality meets timeless design.
Our knitwear features a clean, tailored silhouette designed to prevent bunching or sagging. As a result, our fits run slightly trimmer than traditional American brands.
US Size Comparison
- US S (Polo RL / J.Crew) ➔ Mooncastle M
- US M (Polo RL / J.Crew) ➔ Mooncastle L (Tailored) or XL (Relaxed)
- US L (Polo RL / J.Crew) ➔ Mooncastle XXL
Quick Tip: If you are between sizes or prefer a more relaxed fit, we highly recommend sizing up one full size.
Ordered the wrong size? Return with a prepaid UPS label, and we’ll send the replacement from our US warehouse.
How to Wash
To preserve the soft texture, natural luster, and shape of this delicate knit, professional dry cleaning is highly recommended.
Dry Clean (Recommended): Please consult a trusted professional cleaner to maintain the garment’s original quality.
Hand Wash (Alternative): If you choose to wash at home, gently press by hand in strictly cold water using a neutral, wool-safe detergent. Never use a washing machine, and avoid twisting or wringing the fabric.
Reshape While Wet: If hand washed, gently smooth out any wrinkles and carefully reshape the garment to its original dimensions while it is still damp.
How to Dry & Store
Dry Flat: To maintain the clean silhouette and prevent stretching after home washing, always dry flat in the shade.
No Tumble Dry: Please avoid using a dryer entirely. Heat and friction will cause natural fibers to shrink and felt severely.
Storage: We strongly recommend folding your knitwear for storage. Hanging knitwear on a hanger will stretch the fabric and distort the shoulders over time.
Important: A Note on Care & Fit
Water & Shrinkage: While dry cleaning minimizes changes to the fabric, choosing to hand wash will result in slight natural shrinkage.
The "Live" Fit: If the knit feels slightly snug after hand washing, the resilient natural fibers will relax as you wear it, naturally conforming to your body for a comfortable fit.
Sizing Tip: If you prefer a more relaxed or loose fit from the start, we recommend purchasing one size up.
Enjoy authentic Japanese craftsmanship without the international wait.
Every piece is knitted in our Osaka factory, but dispatched directly from our US warehouse.
- Fast & Free: Packed within 1-2 business days and delivered via UPS (3-6 days) at no extra cost.
- No Hidden Fees: Because it ships domestically, you’ll never face surprise import duties or customs delays.
We want you to feel as confident wearing our knitwear as we do making it. If the fit isn’t perfect, returning or exchanging it is completely hassle-free.
- 100% Free (No Shipping to Japan): We provide a prepaid UPS return label. You pay zero return postage, and everything is handled directly through our US warehouse.
- 30-Day Window: Take your time. You have 30 days from delivery to return or exchange any unworn, unwashed item with its original tags.
- Fast & Seamless Exchanges: Need a different size? Just email us. Once your return drops at our US facility, we’ll immediately ship your replacement from our local stock.
Email : support@moon-castle.jp
*Note: Sale items are final sale.
Crafted in Japan: The Seamless Shetland Wool Knit
(Model is 180 cm / 5'11" and wears size L)
Designed for the colder months, this Shetland wool blend sweater offers a substantial texture with lightweight warmth. 
Knitted using a seamless whole-garment process, it eliminates bulky seams for a clean drape and a comfortable, natural fit.

The Shetland & Merino Blend
Authentic Shetland wool is known for its excellent heat retention and distinctive, resilient texture. Because traditional Shetland knits can sometimes feel coarse, we carefully source a blended yarn that combines this classic wool with fine Merino.

This thoughtful combination maintains the character of traditional Shetland while utilizing the softness of Merino to significantly minimize itchiness, ensuring a more comfortable feel against the skin.

A 10-Color Palette for Effortless Styling
To easily integrate into your daily rotation, this sweater is offered in 10 thoughtful colors.
The palette includes essential basics—like charcoal, navy, and light gray—alongside brighter shades that provide a clean contrast under heavy winter coats.

It is a highly adaptable piece, working effortlessly as a standalone knit or a warm mid-layer.

(Model is 180 cm / 5'11" and wears size L)
Choose options










































