At OTZI, we believe the soul of our furniture lies in the materials we choose. Continuing our series on the heritage craftspeople we partner with, we are focusing on Virgilio Conceria Artigiana, our primary supplier of premium vegetable-tanned leather.
Two weeks ago, our team visited their facilities in the historic Italian leather district of Tuscany to review their production processes firsthand and observe the broader industrial infrastructure.
The Tuscan leather district, known locally as the Comprensorio del Cuoio, is centred primarily around the towns of Santa Croce sull’Arno and Ponte a Egola. This district concentrates numerous established tanneries in a single geographic area, including notable facilities like Lo Stivale, La Perla Azzurra, and L'Artigiano del Cuoio. Rather than operating in isolation, the proximity of these tanneries fosters a highly integrated industrial ecosystem. Being co-located allows these companies to share technical knowledge, establish regional production standards, and utilise shared supply chains. This localised network is a primary reason the region is able to maintain consistent, high-volume production of handmade Italian leather products.
A key operational benefit of this regional ecosystem, which we found particularly amazing, is its cooperative approach to environmental management. Instead of each tannery operating an independent filtration system, the district pools its wastewater through local industrial consortia, most notably Consorzio Aquarno and Cuoiodepur. These facilities utilise an advanced biological purification system to process millions of cubic metres of water annually, creating a highly sustainable closed-loop system. Pollutants and organic matter are stripped away, allowing purified water that meets strict environmental standards to return safely to the local watershed. The filtered organic matter and sludge are dried and processed into sintered granulate, which is then utilised in the construction industry and as agricultural fertilisers.
The unique quality of this leather relies on strict adherence to traditional production parameters. The core components of the leather we purchase from Virgilio include:
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The hides - Virgilio utilises heavyweight cattle hides sourced exclusively from top farms in France, providing an unblemished, structural baseline for our durable leather goods.
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Extended tanning duration - They employ a slow vegetable tanning process utilising natural tannins derived from bark (such as chestnut, quebracho, and mimosa), allowing organic substances to penetrate the hide fibres completely without compromising their structural integrity.
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Drum dyeing - Instead of applying a superficial surface pigment, the hides are placed into large wooden drums and dyed entirely through, ensuring consistent colour penetration across the cross-section of the leather.
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Specialised fatliquoring - A specific fattening phase integrates natural oils and tallows into the fibre structure, increasing hydration and pliability while maintaining high tensile strength. The attention paid to this part of the process can make a big difference to the performance of the leather.
When specifying materials for our vegetable-tanned leather home goods, we select this specific heavy-weight leather over alternatives for several structural and operational reasons. We appreciate the attention to detail, care and time that Virgilio put into their hides. From a product perspective the leather meets our criteria for various reasons - The colours are rich and dyed through; their specialised fatliquoring makes the leather highly pliable so it can be worked successfully into our OTZI pieces; and the leather also ages beautifully, developing a natural patina. Additionally, their process uses natural tannins and is highly regulated, and therefore in line with OTZI’s sustainability priorities.
This meticulous process provides the strength and beauty required for our premium leather homewear.
