17 Brands Like Klattermusen for Eco-Friendly Outdoor Gear
You spent months tracking down Klattermusen after seeing that Gere 3.0 jacket on a backcountry forum. The recycled fabrics and Scandinavian restraint, the gear that performs on a ridgeline without trashing the planet. Now you want more brands that hit the same mark, and the search is brutal. Most outdoor companies either talk a big sustainability game with nothing behind it, or they build bomber gear with zero regard for environmental impact. Finding that overlap between real technical performance and verified environmental responsibility takes more digging than it should.
We dug through the technical outdoor space to find brands that match what Klattermusen does best: serious performance built on verified sustainable practices. Every brand below earns its spot through real material innovation and gear that holds up when conditions turn ugly.
Patagonia
Patagonia has been building outdoor gear around environmental responsibility since Yvon Chouinard switched the entire cotton line to organic in 1996. In 2022, Chouinard transferred company ownership to a trust dedicated to fighting climate change. The Worn Wear program lets you buy used Patagonia gear or trade in old pieces for store credit, and the supply chain transparency reports are public on the website. Fair Trade Certified factory partnerships back up the marketing claims with auditable standards.
The product range covers everything from alpine shells to recycled-polyester fleeces. If you already own Klattermusen for your technical layers, Patagonia fills gaps across base layers and everyday outerwear with the same commitment to repair over replacement.
Best for: All-around outdoor enthusiasts who want a proven repair program and lifetime gear commitment.
Fjallraven
Fjallraven shares Klattermusen's Swedish DNA but takes a different design path. Where Klattermusen builds for alpine intensity, Fjallraven builds for longevity on long-distance treks. The proprietary G-1000 fabric is a waxed cotton-polyester blend designed to last decades, and the brand actively encourages re-waxing and repairing rather than replacing. The Kanken backpack became a global icon, but the real strength lives in their expedition-grade shells and trekking pants.
Fjallraven's sustainability approach centers on durability as the most ecological choice. Buying one jacket that lasts fifteen years beats buying four that fall apart. The brand also operates a re-waxing service and publishes care guides to extend the life of every piece. If you prefer a heritage outdoor aesthetic over Klattermusen's more technical look, this is where your money goes furthest.
Best for: Trekkers and hikers who want heritage Scandinavian gear built to outlast a decade of hard use.
Cotopaxi
Cotopaxi runs a different playbook from Klattermusen's minimalist restraint. The Del Dia collection gives factory workers creative control over colorways, so every bag and jacket comes out one-of-a-kind, using repurposed and recycled fabrics that would otherwise hit landfill. The brand is a certified B Corp and directs a portion of revenue toward poverty alleviation programs in communities along the Andes.
The gear is more colorful and more accessible on price than what you find from Klattermusen. Expect functional performance for hiking and travel rather than extreme alpine conditions. If your kit leans toward muted Scandinavian tones and you want something that pops on the trail, Cotopaxi delivers that contrast with the same environmental accountability.
Best for: Trail hikers and travelers who want sustainable gear with bold color and a social mission.
Arc'teryx
Arc'teryx builds some of the most technically precise outdoor gear on the market. The Canadian brand is known for obsessive construction details: micro-seam allowances and laminated GORE-TEX Pro shells designed for specific alpine conditions. Their ReBird program handles resale and repair of used gear, and the brand has been increasing its use of recycled and bio-based materials across the line.
The design language is minimal and functional, which puts it closest to Klattermusen in visual terms. Where Klattermusen leads with sustainability messaging, Arc'teryx leads with performance engineering. You pay a premium for the construction quality, but the pieces hold up through years of hard mountain use.
Best for: Alpinists and climbers who prioritize technical precision and are willing to invest in gear that performs in extreme conditions.
Norrona
Norrona is one of the closest direct competitors to Klattermusen in both philosophy and market position. Founded in Norway in 1929, the brand makes high-performance technical gear for skiing and mountaineering. Sustainability runs through the product line with extensive use of recycled fabrics and Responsible Down Standard certification. Their Loaded Minimalism concept strips out everything unnecessary from each garment.
The aesthetic runs bolder and more vibrant than Klattermusen's muted palette. If you want that same Scandinavian engineering and environmental rigor but prefer brighter colors on the mountain, Norrona is the natural next step. Expect a comparable price point to Klattermusen on their technical shells.
Best for: Skiers and mountaineers who want Nordic-engineered technical gear with verified sustainable credentials.
Black Diamond
Black Diamond started as a climbing hardware company and built its reputation on gear that people trust their lives to. The apparel side has expanded into technical shells and insulated jackets that carry the same durability standards. The brand has been integrating bluesign-approved materials and recycled fabrics across its clothing lines, with transparent reporting on chemical management and labor practices.
The fit and design lean athletic and streamlined compared to Klattermusen's slightly boxier alpine cuts. You get the technical performance without the Scandinavian design language. For climbers who already rely on Black Diamond for belay devices and protection gear, adding their apparel keeps your entire kit under one roof.
Best for: Climbers and mountain athletes who want apparel from a brand that understands vertical terrain.
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Mountain Equipment
Mountain Equipment has been outfitting serious mountaineers from the UK for over 60 years, including expeditions to Himalayan peaks and polar environments. The brand holds Fair Wear Foundation leader status and uses recycled down alongside recycled synthetic fabrics across its insulated jacket range. Their down sleeping bags are considered some of the best in the industry for weight-to-warmth ratio.
The gear is built for the worst conditions you can find. If Klattermusen appeals to you because it refuses to compromise on protection, Mountain Equipment operates with the same mentality but adds six decades of expedition-tested refinement. The aesthetic is rugged and technical with zero lifestyle pretense. You buy Mountain Equipment because you are heading somewhere cold and exposed, not because it looks good at a coffee shop.
Best for: Expedition-grade mountaineers who need proven protection in extreme cold and high altitude.
Houdini
Houdini is a Swedish brand pushing harder on circular design than almost anyone in the outdoor industry. The goal is a 100% circular product line, and the brand is close. Fabrics come from recycled and biodegradable sources, and the Houdini rental and resale programs keep garments in active use far longer than a typical product lifecycle. The Power Houdi fleece has become a go-to mid-layer for Scandinavian outdoor enthusiasts.
Compared to Klattermusen's heavier alpine focus, Houdini builds lighter and more versatile pieces that work across running and skiing. The two brands share Swedish roots and minimalist design instincts, but Houdini goes further on circularity as a core business model.
Best for: Sustainability-focused outdoor athletes who want lightweight, circular-design performance layers.
Icebreaker
Icebreaker built its entire identity around merino wool as a performance fiber. The New Zealand-sourced wool is naturally odor-resistant and temperature-regulating, which makes it a completely different approach to sustainability than the recycled synthetics most outdoor brands rely on. The brand traces its wool supply chain from specific farms through production, and you can look up the origin of your garment on their website.
Where Klattermusen excels at outer shells and packs, Icebreaker owns the base layer and mid-layer space. Pairing the two brands gives you a full system: merino next to skin from Icebreaker, technical protection on top from Klattermusen. The natural fiber approach means fewer microplastics shed during washing, which is a growing concern with recycled polyester gear.
Best for: Outdoor enthusiasts who want natural-fiber base layers and mid-layers with full supply chain traceability.
Rab
Rab started as a Sheffield-based operation making down sleeping bags for British climbers, and that hardwearing mountain DNA still drives the brand. Now a certified B Corp, Rab has spent the last decade pushing toward climate neutrality while increasing recycled material content across its jacket and insulation lines. The Microlight Alpine down jacket has become a staple among European hikers for its warmth-to-weight performance, and the brand publishes detailed environmental impact reports.
The product range overlaps with Klattermusen on technical shells and insulated layers, but Rab brings a distinctly British mountain perspective. The gear is designed for the damp, cold, windy conditions common in UK and Alpine climbing rather than the dry cold of Scandinavian winters. If you want a B Corp-certified alternative with strong down insulation options, Rab delivers.
Best for: UK and Alpine hikers who want B Corp-certified technical gear with standout down insulation.
Written by
Spencer Lanoue
