Mammut and Beams Reissue Iconic Serac Extreme Jacket
The collaborative release brings back the classic shell design worn during a historic 1995 expedition.
Updated on Oct. 20, 2026 in Men’s Clothing

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Mammut has partnered with Beams to launch a limited reissue of the Serac Extreme Jacket. The collaboration restores the iconic pattern from the brand's first-generation model.
Why it matters
This release marks a blend of archival design and current manufacturing, catering to outdoor enthusiasts who prioritize historical mountaineering gear.
The jacket features a GORE-TEX construction that mirrors the original 1995 shell pattern. The model is officially titled the SERAC EXTREME JACKET BEAMS SPECIAL.
The players
Mammut
Mammut is a Swiss mountaineering company known for producing high-performance outdoor equipment and apparel.
Beams
Beams is a prominent Japanese retail brand that specializes in fashion collaborations and streetwear.
Stephan Siegrist
Stephan Siegrist is an internationally recognized Swiss climber and alpinist.
The details
The reissue maintains the original aesthetic while integrating modern performance materials for enhanced durability. Exclusive touches from the design team at Beams accompany the technical specifications of the shell.
Timeline
Stephan Siegrist wore the original jacket during a December 1995 expedition in Patagonia.
The collaboration was announced on October 20, 2026.
Culture Shift
The collaboration highlights the increasing value of archival technical apparel within the global fashion market. Brands are moving away from purely modern aesthetics to emphasize the heritage and design lineage of classic mountaineering gear.
The limited availability of this special edition may require proactive tracking for collectors seeking authentic archival designs. Prospective buyers should check with major retailers or official brand channels to verify regional stock levels.
The takeaway
Collectors should focus on the specific shell pattern details to differentiate this reissue from standard modern offerings. Investing in collaborative archival pieces can provide both functional outdoor performance and long-term style value.
Further reading
Discover more about current trends in Men’s Clothing.
Source note: This article includes information reported by MR Magazine.
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