Four Partners, One Jacket, and a New Logic for End-of-Life

At the centre of the Helium Loop's construction is a deceptively simple premise: that a garment must be designed to be unmade with the same precision applied to making it. In practice, that premise reorganises everything—which materials are selected, how they are joined, and which components are permitted into the system at all.

The mechanism that makes physical disassembly possible is Resortecs' Smart Stitch, a heat-activated thread that dissolves under controlled thermal conditions, releasing the garment's constituent materials into separate recovery streams. Where conventional stitching binds shell fabric, insulation, and lining into a composite that no recycling process can efficiently untangle, Smart Stitch is engineered to disappear on cue. The down comes away from the shell. The shell comes away from the liner. Each material enters its own recycling stream intact, uncontaminated, and at full recovery value.

The shell and liner fabrics are supplied by Pertex, whose Quantum range is built on a principle its Brand Director, Andy Laycock, describes as "downproof by construction." As Laycock explains, their fabrics "do not rely on coatings or lamination—their performance is inherent in the density of the weave and the precise calendering." A construction philosophy developed around weave performance proved directly compatible with the Helium Loop's requirements. By introducing no additional coatings or laminations, the fabric presents no contamination risk to downstream recycling processes.

The alignment between performance engineering and disassembly logic was not accidental—but neither was it automatic. It required disassembly to be introduced as a design constraint early enough to shape every subsequent material and construction decision.

Cédric Vanhoeck, Chief Executive Officer of Resortecs, puts it plainly. "Early, and quite decisively," he says, when asked how the disassembly requirement reshaped cross-partner decisions. "The moment we introduced the requirement for separability, it immediately influenced decisions across partners, including material selection, construction logic, and component choices." The effect, Vanhoeck explains, was a fundamental shift in how the garment was conceived: "It created a shift from optimising individual components to designing the garment as a system that needs to be unmade. That alignment happened at the concept and design phase, not at prototyping. And that's the key learning: If you wait, it becomes a compromise, but if you design for it early, it becomes an opportunity."

This is what separates the Helium Loop from products that incorporate recyclable materials without designing for their recovery. Peak Performance designer Marie Andersson is direct on this: "The core insight is that true circularity isn't about accepting compromises—it's about engineering garments to be unmade as thoughtfully as they're made." For Andersson, the project demonstrated that circularity, properly designed, need not involve performance trade-offs: "When premium materials meet thoughtful disassembly design with end-of-life in mind, circularity becomes a performance advantage as every component maintains its highest value across multiple lifecycles."

The garment that results is a designed-to-be-reversible system—one in which assembly and disassembly have been co-engineered from the start, and in which circularity is achieved through the design logic governing how materials are brought together and, ultimately, taken apart.

If the previous section establishes what the Helium Loop achieves by design, the material realities it encountered in development reveal why such design has been so rare. The cause is not the absence of recyclable materials — the industry has had those for years.

Down insulation is a useful illustration. It is renewable, biodegradable, and theoretically recyclable—a material that ought to sit comfortably within any circular system. The Helium Loop specifies 800-fill power down supplied by Allied Feather + Down. Yet even at that specification, the material's circular credentials depend entirely on whether the garment it inhabits can be taken apart. Matthew Betcher, Creative Director with Allied Feather + Down, notes that when his team specified down for the project, they approached it as they would any other product: "The fact that circularity needs to be thought about at point of conception did not matter. We chose the material much like we would with any other product. Down itself has no real constraints in itself regarding recovery."

Even within a project explicitly structured around circularity, the selection of down proceeded on conventional terms—because the material itself presents no barrier to recovery. The barrier lies elsewhere.

As Betcher goes on to explain, recovery from finished jackets is an altogether different matter: "Down is inherently circular in potential, but the recovery from jackets remains difficult. We can remove the down from jackets, but there is a lot of loss. A lot of material ends up entangled in threads which makes it then also impossible to recycle those textiles since it is now too contaminated."

The conclusion Betcher draws is pointed: "This is the problem with the way current products are considered recyclable. They may use mono materials or 100% recyclable materials. But that does not mean the product itself is recyclable."

The same contradiction surfaces when disassembly technology meets real-world waste infrastructure. Vanhoeck is candid about where the friction lies: "Today's waste streams are highly heterogeneous, often contaminated, and largely not designed for disassembly." Critically, he locates the problem not in the disassembly technology itself but in the misalignment between how older products were built and what future recycling systems require: "Variations in how garments are constructed negatively affect the efficiency and output quality of recycling. Essential upstream steps like sorting and identification, along with the presence of incompatible trims or materials, further reduce the recovery value."

For Vanhoeck, this means disassembly cannot be positioned as a standalone fix. "We see disassembly not as a standalone solution, but as an integral part of a systemic change. The entire process—design, disassembly, and recycling—must be coordinated. While Helium Loop demonstrates the potential of this integrated approach, achieving scale demands a systematic improvement in the quality of garments entering the recycling system."

What the Helium Loop exposes, then, is that circularity claims built on input materials are insufficient when product architecture makes those materials unrecoverable in practice. The project addresses not just what garments are made from, but whether the systems built to recover them can actually do so.

If design governs disassembly, and construction determines recoverability, what governs the materials themselves across multiple lifecycles is a third and distinct challenge. For a circular system to function beyond a single recovery cycle, materials must be engineered not only to perform during use but to retain sufficient quality and integrity to be reprocessed into something of equivalent value. That requirement introduces criteria that simply do not exist in linear production.

The Helium Loop's shell and liner are woven from NetPlus nylon—a material derived not from virgin polymer but from fishing nets rescued before they enter the ocean. The sourcing story matters, but the more consequential point is what it demonstrates about material quality: post-consumer nylon, when properly processed, can meet the same performance thresholds as virgin input.

David Stover, Co-Founder of NetPlus and CEO of Bureo, the company behind NetPlus, is clear on the standards his material is held to: "Every pellet of NetPlus nylon 6 is created to the same rigorous standards of quality and traceability." For Stover, the broader implication is one the industry needs to internalise: "Our hope is that brands seeking circularity consider the origin of their materials and choose post-consumer recycled materials—like NetPlus—that are made from inputs that already exist today."

Quality consistency at that level has a direct engineering basis. Nylon's properties—high tensile strength and durability—are what make it effective in fishing nets, and what make it suitable for technical outerwear. But sustaining those properties into a second or third life requires intervention at the point of recovery.

As Stover explains, the process is exacting: "To ensure the material's quality in its next life, we sort, clean, and remove contaminants from our rescued nets before recycling. To yield A-grade recycled material, inputs must be cleaned and qualified before they are reintroduced into the production system."

Pre-processing discipline—sorting, cleaning, contaminant removal—is what separates materials capable of multi-lifecycle performance from those that degrade in value with each recovery cycle. It also reframes how material selection must be approached within a circular product system. Compatibility with future recycling streams becomes as relevant a specification criterion as immediate performance. A material that performs brilliantly in use but cannot be reprocessed at adequate quality is, from a systems perspective, a liability at end-of-life.

Within the Helium Loop, NetPlus nylon enters the product already carrying that processing history—traceable, standardised, and qualified for re-entry into production. Traceability, in this context, is not merely a provenance claim. It is the mechanism by which material value is preserved and verified across cycles, enabling the recovery system to receive inputs of known quality rather than heterogeneous, unqualified waste. Materials are not consumed. They are assets in a managed state, whose value depends entirely on how carefully they are handled between lives.

Beyond the Prototype

What the Helium Loop establishes is a set of conditions under which circularity becomes technically viable. The project also has a corporate context—Peak Performance has committed to total range circularity by 2030, and the Helium Loop is the design logic that commitment requires put into practice. Those conditions are not easily replicated at scale—and the project makes no claim that they are. What it does demonstrate is that the obstacle to circular performance apparel is design intent, not material science. The remaining question is whether that intent can be built into an industry still largely structured around garments never meant to come apart.