Each case is built
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KOIWU - Genuine Finnish birch with MagSafe or your own engraving 🇫🇮
£22.00£25.00
Free delivery • 180-day warranty
Made to order
Satisfaction guarantee
Natural materials
- Northern wood species – curly birch, gray ash (kelo), birch – are veneered and finished by hand in Oulu. Each case has a unique grain pattern.
- Reindeer leather, salmon leather, and water-repellent cork provide a soft feel and develop a beautiful patina.
- 600 D/500 D Cordura® fabric and genuine M05, MultiCam®, M90, etc. defense force fabrics make special models extremely wear-resistant.
Frame and protection
- Shock-absorbing TPU inner frame combines with durable natural materials. 1.5 mm raised edge keeps both the screen and camera off surfaces.
- Case surface thickness approx. 1.3 mm and weight only ~28 g, so the protection doesn't make your phone bulky.
- SGS laboratory certified MIL-STD-810H 516.8 – 2 m drop test on every corner.
MagSafe & wireless charging
- A hidden neodymium ring (optional) provides full MagSafe compatibility for iPhone, Samsung, Pixel, OnePlus, and Nothing models, and keeps accessories firmly in place.
Compatibility and finish
- Precision CNC-milled port and speaker openings, responsive buttons, and a matte black TPU edge ensure a perfect fit for over 150 phone models.
- All Lastu cases are made to order in Oulu, delivery 2–8 business days within the EU, and come with a 6-month material warranty.
In a nutshell
Unique surface of natural materials + flexible TPU frame + official 2 m drop test + MagSafe readiness = lightweight, durable, and personalized protection made in Finland – for you.
Delivery
- Free letter delivery to Finland and the EU (no tracking). If you want a tracking code, you can choose a paid Posti parcel or registered letter at checkout.
- Orders are shipped from our Oulu workshop in 1–5 business days; estimated delivery times: Finland 1–8 days, EU 3–10 days, rest of the world 5–14 days.
- We deliver outside the EU with EMS service, which includes tracking and customs documents.
- Shipments not picked up will be returned at the sender's expense.
Returns and exchanges
- 14-day return policy for unused products in original packaging.
- Personalized products (e.g. your own photo, logo, or engraving) are not eligible for return.
- You can exchange the product within 6 months for the same model with a 50% discount.
- Include your order number and IBAN account number with the return for a refund.
- Any transport damages must be reported to Posti and Lastu within 14 days.
- All Lastu products have a 6-month material and manufacturing defect warranty.
In a nutshell
Free letter delivery within the EU, trackable Posti parcel available; processing 1–5 days → delivery in as little as 3–9 days.
14-day return (excluding personalized items), 6-month exchange option and warranty – easy and risk-free shopping.
Do you need help?
Our customer service is happy to assist you with matters related to our products, orders, and requests.
Lastu protective cases are made from FSC-certified northern wood species (curly birch, ash / dead pine, oak, walnut), genuine reindeer and salmon leather, and shock-absorbing TPU frame. Each wooden phone case is unique, as the grain pattern naturally varies.
The case's TPU inner frame and 1.5 mm raised edge protect the screen and camera.
The model has been SGS laboratory tested to MIL-STD-810H 516.8 – 2 meter drop test (26 angles), so your phone reliably withstands everyday bumps.
Yes. The optional internal neodymium ring makes the case fully MagSafe-compatible with iPhone, Samsung, Pixel, and OnePlus models, allowing wireless charging and accessories to attach just as securely as with Apple’s original case. Add MagSafe functionality to your case on the product page.
The total thickness of the case is about 1.3 mm and the weight is on average 28g, so the lightweight wooden protective case does not make the device bulky nor does it prevent wireless charging.
Yes. Unused products have a 14-day right of return. Personalized engravings are unique and do not have a right of return, but they can be exchanged for a new one at 50% of the price within six months.
Wipe the surface with a dry microfiber cloth and, if necessary, add a drop of natural oil along the grain of the wood. It is advisable to protect the leather with a colorless conditioner. Avoid strong chemicals so that the domestic wooden case develops a beautiful patina and lasts for years.
Domestic birch in your pocket
Customize with MagSafe or your own engraving
Finnish design – since 2011
Hiilikoivu is like a shadow in the forest – stylish, understated, and boldly Finnish. The back of this matte black phone case is made from genuine domestic birch, dyed deep black without losing the wood’s natural grain pattern. The result is a modern and refined surface that doesn’t shout but whispers – with good taste.
MagSafe or your own image – you decide
Choose MagSafe compatibility if you want the benefits of wireless charging and magnetic accessories. Or make the case truly your own – have your name, logo, or even a simple image engraved on it. Live preview shows all your choices in real time, from phone model to details. Unfortunately, the engraving preview is shown only in black, but in reality, the engraving will match the product images, meaning it will be birch-colored.
Compatible with the most popular phone models
The Hiilikoivu cover is available for the following brands:
- iPhone
- Samsung
- OnePlus
- Google Pixel
- Nothing
The case structure protects the screen and camera with raised edges – without unnecessary bulk in your pocket.
Complete the look with Lastu's MagSafe accessories:
- 🔘 Magnetic finger holder – slim and secure aluminum support
- 💳 Genuine leather MagSafe wallet – holds up to 4 cards
Why choose the Lastu Hiilikoivu case?
- ✅ Genuine domestic matte black birch
- ✅ Designed and manufactured in Finland
- ✅ MagSafe and your own image or engraving selectable
- ✅ Raised edges protect the screen and camera
- ✅ Live preview shows the result before ordering
Delivery
Manufactured in Finland and shipped from production within 2–8 business days. Delivery time depends on the delivery method you choose.
Free delivery throughout the EU – and we also ship worldwide.
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Against life's hardships
The cases are designed to protect your screen, camera, and your entire phone because that is the purpose of phone cases.
In addition, your shell feels, looks, and smells wonderful.
Made for you
According to your choices
Made to order
Every Lastu is unique
No two are alike
What does your Lastu look like?