Mooncastle.

Mooncastle creates refined Japanese knitwear built around the idea of the “finest basic”. Founded in Osaka and shaped by more than half a century of expertise, the brand focuses on simple, beautifully made garments that feel exceptional to wear and remain relevant season after season. Rather than chasing novelty, Mooncastle is about permanence: clean silhouettes, considered materials and knitwear designed to become part of everyday life.

Every piece is shaped by Japanese precision and a deep respect for craft. Mooncastle’s Osaka factory oversees each stage of production in-house, from yarn selection and design through to pattern cutting, knitting, sewing and finishing. This complete control allows the brand to refine every detail, creating garments with a consistent fit, elegant handle and dependable construction.

Materials are central to the Mooncastle approach. The brand carefully selects premium fibres from respected producers around the world, including crisp, breathable Ice Cotton from Switzerland and fine Merino wool from Australia. Each fibre is chosen for comfort, durability and the character it brings to the finished garment, resulting in knitwear that feels soft against the skin while holding its shape beautifully over time.

Our Mooncastle collection at Jeanstore includes understated knitwear and everyday layers designed to sit naturally within a considered wardrobe. Expect clean lines, subtle texture and a quiet sense of luxury that works effortlessly with denim, chinos, overshirts and tailored casual pieces. These are garments that do not need to shout; their quality is felt in the fabric, the fit and the way they wear.

With a focus on consistency, authenticity and fair value, Mooncastle offers knitwear made to be worn often and appreciated for years. Simple, refined and carefully crafted, it is Japanese-made clothing with lasting purpose.

Mooncastle at Jeanstore

Mooncastle is a brand shaped by more than 50 years of expertise, built in Osaka with a clear and disciplined focus on creating what it calls the “finest basic”. Rather than chasing novelty or seasonal excess, the brand is centred on permanence, producing understated garments designed to feel exceptional, wear beautifully and become part of everyday life. That quiet confidence runs through the whole collection, with clean silhouettes and refined construction allowing the quality of the materials to take centre stage.

At the heart of Mooncastle is a fully integrated approach to production. From yarn selection and design through to pattern cutting, knitting, sewing and finishing, every stage is carried out in-house at the brand’s Osaka factory. This level of control allows for remarkable consistency and precision, with even the smallest details carefully considered. The brand also works with exceptional raw materials sourced from respected producers around the world, including crisp Swiss Ice Cotton and fine Australian Merino wool, chosen for their comfort, durability and character.

The result is knitwear that balances quiet luxury with genuine everyday practicality. These are pieces designed to be worn regularly and appreciated over time, offering softness, shape retention and an easy place within a well-built wardrobe. Mooncastle stands for thoughtful design, honest quality and enduring Japanese craftsmanship, delivering timeless garments that feel as good as they look.

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CUSTOMER FAQs

What is your returns policy?

You can return your order within 30 days of delivery. We can offer a full refund, exchange or store credit.

Exchanges are free on all orders.

Refunds will incur a £2.99 charge towards the returns label, which will be deducted from the refund - with the exception of Jeanstore Unlimited members for whom refunds are also free. Standard delivery charges will also be refunded.

International returns will need to be returned at your own expense.

Read our full returns policy here.

What is Jeanstore Unlimited?

Jeanstore Unlimited is a 12-month subscription available to purchase from your basket before placing an order.

For just £19 per year, you will get the following benefits:

Unlimited free next day delivery
Free returns on all orders
Early access to VIP sales
Early access to new releases

Jeanstore Unlimited does not auto-renew.
Only available within the UK.

How long does delivery take?

We offer UK delivery via both Royal Mail and DPD. You will have three different speed delivery options available at checkout, each giving an estimated delivery date.

Next day delivery is available via DPD for orders placed before 3pm (excluding weekends and bank holidays.)

International delivery times vary - the delivery speed will be shown when you select your delivery country at checkout.

Read more about delivery here.

Do I pay tax and duties on international orders?

For international customers, UK VAT has removed from the prices you see on our website. After you enter your delivery address at checkout, all local taxes and duties will be added to the total and we pay these in advance for you.

This means there are no extra charges before delivery and no nasty surprises!

I need help. How can I contact you?

Our customer services team are ready to help you with any product advice, issues or questions you may have.

You can contact us any time on admin@jeanstore.co.uk

Our phone lines are open Monday-Friday, 10am-5pm. You can call us on 01903 533099.