Sustainability stopped being a marketing word and started becoming a sourcing constraint. Here's what that actually looks like on a tech pack.
Every founder I work with asks the same question within the first three meetings: how do I make this sustainable without doubling my landed cost? It's the right question. The honest answer is uncomfortable.
The Real Cost of Going Green
Switching from conventional cotton to GOTS-certified organic, on average, adds 15-30% to your fabric line item. Recycled polyester runs cheaper than virgin in some categories now, but only at volume. Deadstock is the cheat code — until you try to reorder and discover the whole point of deadstock is that there isn't any.
- Certifications cost money and take months. Plan a year, not a season.
- Traceable supply chains are a competitive advantage with retail buyers — not just consumers.
- The packaging line item is where most small brands quietly cheat.
What Buyers Actually Audit
If you're pitching Net-a-Porter, SSENSE, Browns or any of the European multi-brands in 2026, you will be asked for a sustainability one-pager. Not a story. A document. Materials, certifications, factory list, audit dates.
The brands that win are the ones who treat that document as a sourcing decision, not a marketing one.