A Real Stone Jacket for $50,000: Vollebak Made Clothing From 54,000 Pieces of Slate

British avant-garde gear brand Vollebak has unveiled the Rock Jacket, assembled almost entirely from natural slate. To turn hard mountain rock into stretchy textile, the designers used a mosaic of 54,000 microscopic stone tiles. The experimental garment is a one-off and is priced at $50,000.

Each element of the stone fabric measures just 5 × 5 mm and is 0.5 mm thick. The tiles are glued to a stretchy neoprene backing with micron-wide gaps. That segmentation lets the fabric flex smoothly with every movement of the body, so the piece keeps the mobility of an ordinary jacket instead of turning into rigid knight’s armor, Yanko Design reports.

Flexible Stone Technology and 50 Processing Steps

French materials specialist Steven Leprizé helped create the unusual material. He previously developed WooWood, a stretchy wooden mosaic for furniture and accessory finishes. For the new project, the method was adapted to splitting and cutting natural slate.

The composite’s production cycle involves about 50 process steps, the key one being precision laser and waterjet cutting of the rock into perfectly identical squares with no chipped edges.

In cut, the Rock Jacket resembles a classic cropped Harrington bomber. A regular needle stitch won’t work for this composite, so the panels were joined by seamless thermal bonding, while the inner pockets and cuffs were reinforced with abrasion-resistant Cordura fabric, HiConsumption notes. Building a single prototype took five large composite sheets.

🪨 Cette veste est littéralement faite de pierre : Vollebak a recouvert une veste de près de 54 000 minuscules carreaux d’ardoise pour créer un vêtement qui peut quand même se plier. Et le prix est à la hauteur du concept : 50 000 $. https://t.co/T4WYwKBLqA

— 𝟑 𝐞̀𝐦𝐞 𝐎𝐞𝐢𝐥 (@_3emeOeil) October 6, 2026

From Show Concept to Commercial Line

For Vollebak, projects like this are not just a stunt but field tests of promising materials. The company has previously released commercial jackets made of pure graphene, antimicrobial copper thread, plant mycelium and ballistic Dyneema fiber.

The single finished piece is listed on the brand’s official website as a collectible concept piece, with the option to make an offer. But the project won’t remain a one-off exhibit: co-founder Nick Tidball said the engineers expect to optimize the technology and prepare a more affordable production version for open sale in about two years. In parallel, the team is experimenting with flexible matrices made of granite, marble and sandstone.