
ABOUT OUR FACTORIES
BANANATEX®
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.


MEET ALL OF OUR FACTORIES
AND SPECIAL PROJECTS AND RECEIVE 10% OF YOUR FIRST ORDER