Staying Dry Without Forever Chemicals: The Outdoor Industry’s DWR Challenge
The outdoor apparel industry built its performance reputation in part on durable water repellent (DWR) treatments—fluorochemical coatings applied to rainwear, hiking gear, and activewear that cause water to bead and roll off fabric surfaces rather than soaking in. For decades, C8-based fluorochemical DWR (PFOS and PFOA-containing) and later C6-based replacements provided superior water repellency that non-fluorinated alternatives could not match. As the environmental and health consequences of DWR fluorochemicals became undeniable, the outdoor industry—whose customers are disproportionately environmentally aware—became an unlikely PFAS battleground, with major brands competing on their pace and ambition of transition to fluorine-free alternatives.
The DWR Chemistry Evolution
DWR technology has gone through three generations. First-generation C8 DWR used PFOS and PFOA-based fluorochemicals that provided outstanding water repellency but with extreme environmental persistence and bioaccumulation concerns. Industry phased out C8 DWR under EPA’s PFOA Stewardship Program, transitioning to second-generation C6 DWR using shorter-chain perfluorohexyl compounds. C6 DWR was marketed as significantly safer—and it does have lower bioaccumulation potential—but it still contains PFAS that degrade to perfluorohexanoic acid (PFHxA), a persistent compound. Third-generation fluorine-free DWR, based on wax, silicone, polyurethane, and bio-based polymer chemistries, avoids PFAS entirely but has historically underperformed C8 and C6 alternatives, particularly in sustained wet weather performance.
The gap between fluorine-free and fluorinated DWR performance is narrowing as formulation technology advances. Brands including Patagonia, Fjällräven, Ortovox, and Haglöfs have committed to 100% fluorine-free DWR across their product lines and report that next-generation non-fluorinated formulations meet their performance requirements. Premium performance brands including Arc’teryx, Mammut, and Salewa have set phased transition timelines while acknowledging that extreme-condition performance applications present the greatest technical challenges for fluorine-free alternatives.
Regulatory Pressure and Brand Commitments
Regulatory pressure has accelerated the DWR transition beyond what voluntary brand commitments alone would have driven. The EU’s PFAS restriction proposal—if finalized as proposed—would effectively prohibit C6 DWR by banning all PFAS in textiles after a transition period. Norway’s proposed ban on PFAS in outdoor textiles, Denmark’s restrictions on C6 DWR in children’s clothing, and German restrictions on PFAS in textile treatments have created a patchwork European regulatory environment that makes maintaining C6 DWR in European-market products increasingly untenable. Several major European textile retailers including H&M, Inditex (Zara), and Zalando have incorporated PFAS-free requirements into their supplier codes of conduct, extending regulatory pressure through the supply chain.
U.S. regulatory pressure lags Europe, but state-level legislation in California, New York, and Washington is creating domestic market incentives for DWR transition. California’s AB 1817 prohibits PFAS in textile articles sold in California after 2025, encompassing DWR-treated outdoor clothing—a market-scale transition driver given California’s size. The combination of regulatory requirements and leading brand commitments is reshaping the DWR chemical supply market, with fluorine-free DWR products now available from all major chemical suppliers and commanding premium pricing that is gradually narrowing as production volumes increase.