Key takeaways

• The outdoor arena is becoming more versatile in its sourcing of materials and chemistries to fulfil evolving performance and sustainability expectations.
• Regulation is a key driver, as shifting PFAS restrictions look to curb its use in a wider array of applications. Instead, innovation is looking to PFAS-free biobased membranes, non-porous hydrophilic structures and modular chemistries.
• Elsewhere, biobased, recycled, carbon-bonded and other advanced materials are driving functionality and durability while achieving sustainability gains over conventional options.

The outdoor industry is facing a decisive break with per- and polyfluoroalkyl substances (PFAS). Long relied upon for durable water repellency, PFAS are now under heavy scrutiny: their persistence in the environment, bioaccumulation in ecosystems and links to health concerns have triggered regulatory bans across Europe and the US. From 2025 onward, restrictions are tightening further, with many textile applications set to lose PFAS exemptions.

This transition is forcing brands and suppliers to innovate at speed, proving that high-performance protection against the elements can be achieved with the development of alternative materials, without reliance on so-called forever chemicals.

PFAS-free: How regulation drives innovation
eVent StormST and StormburstST
eVent has rebranded its plant-based membrane technologies to signal a new era of performance without compromise.

The StormST line, formerly known as eVent BIO, delivers waterproof, breathable protection via a bio-derived membrane paired with recycled fabrics and C0 DWR finishes, comparable to traditional PFAS-treated fabrics [1]. Designed for fast, aerobic activities, the ultralight StormburstLT introduces a razor-thin 5 µm PFAS-free membrane that delivers strong moisture vapor transfer, windproofing and flexibility.

This fills an important niche in the market for ‘fast-and-light’ weather protection, targeting brands specialising in active pursuits like running, cycling and