Sustainability

We source our fabrics from certified suppliers who operate to the highest environmental and social standards. Our principal fibres — organic cotton, linen, mulberry silk, and Merino wool — are all traceable to their origin.

By 2030, we are committed to eliminating virgin synthetic fibres from all our collections. We are actively developing garments using Tencel, recycled polyester, and plant-based dyes.

Our supply chain is built on long-term partnerships, not transactional relationships. We visit each of our 34 manufacturing partners annually, ensuring fair wages, safe conditions, and respect for workers' rights.

We are founding members of the South Asian Artisan Alliance, a non-profit initiative supporting traditional craft communities through skills training and market access.

We have measured and disclosed our full Scope 1, 2, and 3 greenhouse gas emissions since 2020. We offset residual emissions through verified projects including reforestation in the Western Ghats and renewable energy in Rajasthan.

Our London head office is powered entirely by renewable energy. We are transitioning to electric fleets with our logistics partners through 2027.

Since 2024, all Twelve packaging is plastic-free and made from recycled or sustainably sourced materials. Our garment bags are 100% organic cotton.

Our Take Back Programme allows customers to return worn Twelve garments for upcycling, resale, or responsible recycling. Returned items are never landfilled.