The Utility Suit Factory

Cultivation & Fiber Extraction: Philippines
Processing & Yarn Production: Taiwan
Design & Development: Zurich, Switzerland
Established: 2018

At ISTO., we chase materials that are thoughtfully made and responsibly sourced. That’s why teaming up with QWSTION — the Swiss brand that invented Bananatex® — felt like fate. QWSTION didn’t just find a substitute for synthetic fabrics — they invented something that’s technically impressive, beautifully tactile, and innately circular. In collaboration with Taiwanese yarn specialists and Filipino farmers, they crafted a plant-based fabric that’s durable, biodegradable, and certified Cradle to Cradle™ Gold. All while growing Abacá banana plants in a regenerative ecosystem — no irrigation, no pesticides, just nature doing its thing.

We’re proud to partner with people who question norms, invest in sustainability, and still make something that feels this good to wear.