Glossary · Materials
Mylo (Mushroom) - Innovative Plant-Based Leather
Definition
Mylo is an innovative leather cultivated from mushroom mycelium, developed by Bolt Threads. Neither animal nor synthetic: a true alternative to traditional leathers with remarkable properties. When I discovered it, I immediately sensed its potential for watch straps. The structure is compact, resistant to repeated flexing—exactly what a watch strap demands. The finish can be smooth or textured, with natural colors ranging from ivory to dark gray. What's extraordinary: it withstands humidity better than many animal leathers, without sacrificing breathability. The price still reflects the novelty of the supply chain, but durability is already proven. Perfect for those seeking conscious luxury without compromising the tactile connection with their watch.
Frequently asked questions
Does Mylo really feel like genuine leather on an Omega or Rolex watch strap?
Absolutely. Mylo has the weight, drape, and patina of vegetable-tanned calf—nothing plastic about it. On a 20mm Submariner or Speedmaster, you'll feel that haptic quality that distinguishes true horology. The grain is natural, never industrial.
How does Mylo resist sweat and water compared to Hermès leather?
Mylo is surprisingly moisture-resistant—it actually outperforms many Hermès Barenia in that specific test. It dries quickly and doesn't rot. Salt water still needs a quick rinse, like any respectable watch strap. Daily sweat? Zero issues.
Is a Mylo watch strap suitable for a Patek Philippe Nautilus, or is it too 'eco' for certain wrists?
There's nothing 'eco' that diminishes perceived value. A Nautilus on 20mm Mylo carries the same prestige as animal leather, because Mylo *is* leather—just different origins. Actually, with conscious collectors, it's a plus.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only