What materials is the Citadel made from?

Citadel is crafted from premium tungsten carbide. Tungsten carbide is hypoallergenic and surpasses gold and titanium in hardness and scratch resistance.

Is the Citadel suitable for sensitive skin?

Yes, the Citadel is hypoallergenic and tested for purity, making it safe for sensitive skin. The tungsten carbide material contains no nickel or other common allergens.

How do I care for my Citadel?

Clean your Citadel with mild soap, warm water, and a soft cloth. Avoid abrasive pads, ultrasonic cleaners, or harsh chemicals. Always dry thoroughly before storing.

Can I wear my Citadel while swimming or showering?

We recommend removing your Citadel before swimming, showering, or prolonged water exposure. While tungsten carbide is highly durable can be affected by moisture and chemicals like chlorine.

How do I care for the wood inlay?

The natural wood inlay requires special attention to preserve its beauty. Clean gently with a soft, barely damp cloth and dry thoroughly immediately. Never expose to prolonged water, humidity, or extreme temperatures, as wood can warp, crack, or swell. Remove your ring before any water activities, hand washing, or applying lotions. Avoid harsh chemicals and abrasive cleaners. Store in a cool, dry place when not wearing.

Will the wood inlay change over time?

Yes, natural wood may develop subtle changes in color and tone with wear, creating a unique patina that reflects your ring's journey with you. This is part of the wood's organic character and individuality. With mindful care—protecting it from moisture, chemicals, and temperature extremes—the wood will age beautifully while maintaining its structural integrity and distinctive grain patterns.

Are the natural materials sustainably sourced?

Yes, sustainability is central to Foundoria's ethos. The natural wood is responsibly sourced. We work with trusted partners who share our commitment to ethical practices and environmental responsibility.

Is each Citadel unique?

Yes, because the Citadel features authentic natural wood, each ring is completely unique. The natural grain patterns, colors, and textures of the wood ensure that no two rings are ever identical, making your ring truly one-of-a-kind.

What is included with my Citadel purchase?

Every Citadel includes a complimentary ENDURA silicone band and our signature eco-luxury clamshell presentation box. All purchases are covered by our Limited Lifetime Warranty and come with free UK express delivery (free worldwide shipping on orders over £100).

Does the Citadel come with a warranty?

Yes, every Citadel is backed by Foundoria's Limited Lifetime Warranty. If your ring shows signs of damage during normal wear, we will replace it with a new one. This warranty ensures your ring maintains its quality and craftsmanship over time.

What is the comfort fit design?

The Citadel features a comfort fit design with a seamless inner curve that contours to your finger, making it ideal for all-day wear. The interior is engineered for maximum comfort.

How do I find my correct ring size?

You can access our Ring Sizing Guide directly on the product page. We also offer a complimentary ring sizer that you can request for perfect accuracy. This ensures you get the right fit before ordering your Citadel.

Can I return or exchange my Citadel?

Yes, you can start a return or exchange within 30 days of delivery. Please note that once your order is confirmed, it cannot be cancelled or have the delivery address changed as it's immediately sent to our warehouse. For full details, please refer to our returns policy.

Carbon Fibre Thumb Ring - Wood inner - Foundoria

Carbon Fibre Wood Interior Thumb ring - Foundoria

Mens Carbon Fibre Ring with Wood Interior

Citadel - Carbon Fibre Ring with Wood

Name: Citadel - Carbon Fibre Ring with Wood
Brand: Foundoria
Price: 34.00 GBP
Availability: OutOfStock

£34.00 £40.00

Ring size:

Variant

Secure Payment

Lifetime Warranty

Expert Support

Free Worldwide Express Delivery

Tracked, insured UK delivery in 1-3 business days. International shipping typically 5-10 business days. Inclusive of import duties and taxes — no hidden fees on arrival

30-Day Returns

Free return postage

What's Included

Free ENDURA Ring

£25 Value

Premium Gift Box

Eco-Luxury

Ring Sizing

Shipping Info

FAQs

Key features

Material: Ultra‑light carbon fibre with polished wood interior
Finish: Sleek matte carbon fibre with modern, timeless appeal
Width: 8mm band offering balance, presence, and comfort
Sleeve: Smooth wood lining for warmth, contrast, and character
Durability: Scratch‑resistant and engineered for lasting wear
Comfort: Rounded comfort‑fit profile for effortless daily use
Style: Innovation fused with natural warmth and sophistication

FULL DESCRIPTION

This men’s carbon fibre ring blends cutting‑edge resilience with the natural warmth of wood for a design that is both modern and timeless. The 8mm carbon fibre band delivers ultra‑light strength and scratch resistance, while the polished wood interior adds comfort, character, and organic contrast.

Built for men who value innovation without sacrificing style, this ring is equally suited to everyday wear or ceremonial moments.

Part of Foundoria’s STRATUM Collection, it reflects the balance of endurance, authenticity, and contemporary design that defines the line — a refined choice for those seeking strength reimagined in a sleek, wearable form.