The thrill of carving down a powdery slope, the crisp air on your face, the exhilaration of a perfect run – these are the experiences many seek during winter sports. Yet, unbeknownst to many, the very gear designed to enhance these adventures may be silently poisoning the environment and our bodies. Per- and poly-fluoroalkyl chemicals (PFAS), a pervasive class of synthetic compounds often referred to as "forever chemicals," have been a standard component in outdoor gear, particularly ski wax, snow boots, and water-resistant performance clothing, for decades. These chemicals, applied as a durable water-repellent (DWR) finish, are designed to make water and ice bead up and roll off, ensuring dryness and comfort in challenging conditions. However, their persistence in the environment and potential health risks have ignited a growing concern within the outdoor industry and among consumers alike.

The Pervasive Reach of PFAS: From Mountains to Our Bodies

The problem with PFAS lies in their extraordinary persistence. Once manufactured, these chemicals do not break down naturally in the environment. Instead, they accumulate, a process that has led to their widespread detection across the globe. As we engage in activities like skiing and snowboarding, the DWR coatings on our gear flake off, contaminating our homes and washing into waterways. Furthermore, snow that falls on treated gear can absorb these chemicals, which are then released into the environment when the snow melts. This phenomenon has been observed in some of the most remote and pristine environments, including the snowpack of Mount Everest and the sub-Arctic regions inhabited by First Nation communities in Canada. Studies have documented the presence of PFAS in the blood of individuals living in these remote areas, highlighting the chemicals’ ability to travel vast distances and permeate even the most isolated ecosystems.

The implications of this widespread contamination are far-reaching and deeply concerning. Scientific research has established a strong link between PFAS exposure and a variety of serious health issues. These include an increased risk of certain cancers, reproductive problems such as miscarriage and infertility, hormonal disruption, and even fluctuations in body weight. The EPA, recognizing the escalating threat, has expanded its definition of PFAS, now acknowledging over 12,000 known types, a number that has more than doubled in recent years. This ever-growing list underscores the complexity of the issue and the challenge in completely eradicating these chemicals from our environment and products.

Navigating the Jargon: Understanding "PFAS-Free" and Its Nuances

For consumers seeking to make more environmentally conscious choices, understanding the terminology surrounding PFAS can be a significant hurdle. The industry has historically used the term "PFC" (perfluorinated chemicals) to describe the broad category of chemicals used in DWR finishes. However, PFCs are, in fact, a subset of the larger PFAS family. Increasingly, both governmental bodies, industry players, and environmental advocates are shifting towards the more comprehensive term "PFAS-free."

When a brand claims its products are "PFAS-free," "PFC-free," or "free of fluorinated chemicals," it generally indicates a commitment to avoiding these problematic substances. However, some marketing language can be misleading. Terms like "PFOA-free," "PFOS-free," "long-chain-free," or "C8-free," while seemingly positive, often imply the use of "short-chain" PFAS or their substitutes. As Dr. Linda Birnbaum, a renowned toxicologist and former director of the National Institute of Environmental Health Sciences (NIEHS), explains, "Unless they say it’s PFAS-free, it may mean that they’re using some of what are called short-chain PFAS or the substitutes. In fact, we’re finding some of them are actually transformed into things like PFOA and PFOS. And we’re finding that the ones even that are stable the way they are, when they’re tested are causing the same kind of health effects as the PFOA, the PFOS, the PFHxS, etc." This highlights a critical distinction: simply avoiding the most well-known or historically regulated PFAS does not necessarily mean a product is entirely free from harmful fluorinated chemicals.

The effectiveness of non-fluorinated alternatives has been a point of contention within the industry. Brands like Patagonia and Arc’teryx have previously argued that PFAS-free treatments are less effective than their fluorinated counterparts. This has led organizations such as bluesign and OEKO-TEX to approve the use of limited amounts of short-chain PFAS in the manufacturing and finishing of certain water-resistant outdoor products. However, a growing body of evidence and consumer demand is challenging this narrative. The Danish consumer protection association Tænk conducted tests comparing fluorine-free outdoor wear with items containing fluorine. Their findings concluded that "Whether new or after a few washing cycles, the jackets with a PFC-free coating keep you just as dry as the other ones." Furthermore, adventurers have successfully utilized fluorine-free performance gear in extreme conditions like the Arctic, demonstrating its efficacy even in demanding environments. This suggests that for the vast majority of winter sports enthusiasts, who are unlikely to be engaged in expeditions requiring extreme levels of protection, the performance difference between PFAS-treated and PFAS-free gear is negligible, if it exists at all.

A Timeline of Awareness and Action

The recognition of PFAS as an environmental and health concern has evolved over several decades. While the chemicals themselves have been in use since the 1940s, public awareness and scientific investigation into their harmful effects gained significant momentum in the late 20th and early 21st centuries.

• 1940s: The development and widespread industrial application of PFAS begin.
• Late 1990s – Early 2000s: Early scientific studies begin to identify PFAS in human blood and the environment, raising initial concerns. Regulatory bodies start to investigate specific PFAS compounds like PFOA and PFOS.
• Mid-2000s: Major chemical manufacturers begin phasing out the production of certain long-chain PFAS like PFOA and PFOS under voluntary agreements and increasing regulatory pressure. This marks the industry’s initial shift towards shorter-chain alternatives.
• 2010s: Research intensifies, revealing the widespread presence of a broader range of PFAS and their persistence. Consumer advocacy groups and environmental organizations begin to call for more comprehensive action and greater transparency from brands. The concept of "PFAS-free" gains traction as a consumer demand.
• Late 2010s – Present: A growing number of outdoor brands commit to phasing out all PFAS from their products. Regulatory bodies globally begin to implement stricter regulations on PFAS use and emissions. Consumer demand for PFAS-free products significantly influences product development and marketing strategies. The scientific community continues to research the health impacts of the thousands of different PFAS compounds.

Empowering Consumers: Making Informed Choices for a Healthier Winter

The good news is that a growing number of brands are actively working to eliminate PFAS from their product lines, offering consumers viable and effective alternatives for their winter sports needs. For those looking to purchase new gear, several key strategies can help in identifying PFAS-free options:

• Prioritize "PFAS-Free" or "PFC-Free" Claims: Look for explicit statements on product labels and brand websites that clearly indicate the absence of PFAS or PFCs.
• Be Wary of Vague Language: As discussed, terms like "PFOA-free" or "short-chain DWR" may still indicate the presence of certain PFAS. It is crucial to seek out brands that commit to being entirely PFAS-free.
• Research Brand Sustainability Initiatives: Many brands now dedicate sections of their websites to explaining their sustainability efforts, including their commitment to phasing out harmful chemicals. Patagonia, for example, has a detailed section on its website outlining its journey towards PFAS-free durable water repellency, with a commitment to have all new products with DWR be PFAS-free by spring 2025.
• Consult Trusted Resources: Organizations like Green Science Policy Institute maintain valuable lists of PFAS-free products, serving as excellent starting points for research.

For consumers who already own outdoor gear that may contain PFAS, there are also proactive steps that can be taken:

• Reapply DWR with Safer Alternatives: The durability of non-fluorinated DWR treatments can be a concern. However, this is easily addressed by reapplying PFAS-free water repellency treatments. Products like Nikwax offer effective solutions that can be applied at home, extending the life and performance of existing gear. This not only helps maintain the functionality of your apparel but also reduces the need for frequent replacements, further contributing to sustainability.
• Embrace Secondhand Gear: Purchasing pre-owned outdoor equipment is an excellent way to reduce your environmental footprint. Much of the DWR treatment on older gear may have already degraded, and you can then refinish it with safer, PFAS-free alternatives.

Brands Leading the Charge Towards a PFAS-Free Future

The landscape of outdoor gear is rapidly evolving, with numerous brands stepping up to offer high-performance, environmentally responsible products. Here are some of the winter sports brands that have committed to being entirely PFAS-free:

• Icebreaker: Known for its merino wool base layers and accessories, Icebreaker has never used long-chain PFAS and ceased using any short-chain PFAS in 2019. They rigorously test their products to ensure they are PFAS-free.
• Houdini: This European brand utilizes innovative PFAS-free materials, including their Atmos membrane, and biobased water repellency treatments from Organotex, ensuring their ski and winter hiking gear is entirely toxic-free.
• KEEN Footwear: A leader in outdoor footwear, KEEN has been entirely PFC-free since 2018, offering a range of snow boots and shoes that prioritize environmental safety.
• Lundhags: This company specializes in hiking and ski-touring equipment and offers fully fluorinated-chemical-free ski boots and ice safety gear.
• Paramo: This mountaineering brand has been PFC-free since 2014, demonstrating a long-standing commitment to avoiding these harmful chemicals.
• Picture Organic: Their stylish ski clothing features a bio-based and non-fluorinated finish called EcoElite, ensuring their products are entirely PFC-free.
• Royal Robbins: All durable water repellents used by Royal Robbins are fluorine-free, aligning with their commitment to sustainable materials and product design.
• Vaude: This European brand offers PFC-free ski touring clothing and equipment, having achieved this status in 2018.
• Erin Snow: This brand focuses on chemically safe snow sports clothing, utilizing a PFC-free Bionic-Finish Eco durable water-repellent treatment.
• Patagonia: While taking a more measured approach to ensure performance, Patagonia has committed to having all its new products with durable water repellency be PFAS-free by spring 2025.

While Jack Wolfskin is entirely PFC-free as of 2019, it is unfortunately no longer available in the U.S. market.

The growing movement towards PFAS-free winter sports gear signifies a critical shift in consumer priorities and industry responsibility. By understanding the risks associated with these "forever chemicals" and actively seeking out brands committed to their elimination, outdoor enthusiasts can continue to enjoy the exhilarating world of winter sports while protecting their health and the planet for generations to come. The pursuit of adventure should not come at the cost of environmental integrity or personal well-being.