MAMMUT IN COLLABORATION WITH Nigel Cabourn

Mammut and Nigel Cabourn announce their first collaboration collection. Available now on mammut.com and cabourn.jp.

We're pleased to announce a unique collaboration with renowned British designer and heritage fashion expert Nigel Cabourn. The "Mammut x Nigel Cabourn" capsule collection, launching online at cabourn.jp on October 16th 2025, is a heartfelt homage to the history of alpinism, particularly the 1969 ascent of the Eiger's North Face, known as "Japan Diretissima," a direct route led by pioneering Japanese mountaineer Michiko Imai.

At the heart of this collaboration is the story of Michiko Imai, who, at the tender age of 27, became the first woman to participate in the first ascent of Switzerland's most notorious mountain, the North Face of the Eiger. As the only female member of the six-person Japanese team, Imai not only served as the expedition's doctor, but also helped pioneer the new direct route, known as "Japan Diretissima," on one of the Alps' most challenging faces.

Her courage and determination in achieving this feat at a time when women in Europe needed their husbands' permission to work, has served as a beacon of inspiration for generations of mountaineers and women, and for this collection.

 

"I was very happy to hear that the collaboration between Nigel Cabourn and Mammut was inspired by the Japan Diretissima, which we climbed in 1969," said Imai, now 83. "I hope that many people will enjoy this collection, which uses new materials while retaining the atmosphere of that time, and that it will inspire more people to become interested in nature and mountain climbing."

This capsule collection, comprised of 12 unisex styles, is inspired by the clothing worn by the 1969 expedition and reimagined by Nigel Cabourn through his unique perspective on reinterpreting vintage expedition wear. The collection features authentic materials like Ventile cotton, Scottish wool, and Swiss military blanket fabric, known for their durability, warmth, and timelessness. These traditional materials are combined with modern technologies like Pertex Quantum lining and Dry Down to achieve a classic look while meeting the highest modern standards. The design process involved research into historic mountaineering apparel, including rare archives discovered in an attic in Sheffield, England. The result is a collection of premium products designed to perform to the demands of the mountain environment. This limited-edition collection, with a timeless retro-futuristic look, also makes a great everyday premium piece.

"This collaboration is not about nostalgia, but about celebrating the tenacity, innovation and international spirit of mountaineering," said Nigel Cabourn. "Michiko's story, and the achievements of the entire Japanese team, are a powerful reminder of what humans can achieve in the mountains."

 

【Mammut x Nigel Cabourn Capsule Collection】
Mammut x Cabourn Direttissima IN Parka

This puffer jacket was created in collaboration with Nigel Cabourn, a British designer renowned for his unique style. The outer shell is crafted from Ventile® fabric, a material that has been used by adventurers and mountaineers for weather protection since its development in the 1930s. Drawing on the origins of expedition parkas, this jacket is filled with 850-fill-power goose down for ultimate warmth. Fleece-lined 3D pockets, a chest pocket, and an embroidered Mammut logo complete the unique look. This parka jacket celebrates the achievements of pioneering mountaineers who blazed a trail for their time.

 

Mammut x Cabourn Direttissima IN Jacket

This vintage-inspired jacket features a unique asymmetrical closure based on vintage designs from that era, providing incredible warmth. The patch pocket on the chest and the embroidered MAMMUT GARANTIE logo create a timeless look, paying tribute to the rich history of mountaineering wear.

Mammut x Cabourn Direttissima Wool ML Sweater

Inspired by the first ascent of the Eiger via the direct Japanese route in 1969, this sweater is based on the sweaters worn by mountaineering pioneers. Crafted from the highly insulating wool favoured by climbers in the 1960s as a cold-weather outerwear material, it was knitted at a world-renowned factory in Scotland. The fully fashioned knit construction, jacquard mammoth print, and striped sleeves and hem evoke the atmosphere of the time, creating a sweater that incorporates a timeless design beloved as a part of mountaineering style.

 

【「Mammut x Nigel Cabourn capsule collection: 12 styles】

• Mammut x Cabourn Direttissima Blanket Jacket / 99,000円
• Mammut x Cabourn Direttissima IN Parka / 297,000円 *Scheduled to be released in late October
• Mammut x Cabourn Direttissima IN Hooded Jacket / 181,500円
• Mammut x Cabourn Direttissima IN Jacket / 148,500円
• Mammut x Cabourn Direttissima Wool ML Jacket / 74,800円
• Mammut x Cabourn Direttissima Wool ML Sweater / 41,800円
• Mammut x Cabourn Direttissima Shirt / 49,500円 *Scheduled to be released in late October
• Mammut x Cabourn Direttissima Baselayer / 33,000円 *Scheduled to be released in late October
• Mammut x Cabourn Direttissima Cord Pant / 46,200円
• Mammut x Cabourn Direttissima Cotton Pant / 58,300円
• Mammut x Cabourn Direttissima Beanie / 13,200円 *Scheduled to be released in late October
• Mammut x Cabourn Direttissima Silk Scarf / 13,200円 *Scheduled to be released in late October

Available at Nigel Cabourn stores and the official Nigel Cabourn online store cabourn.jp from Thursday, October 16, 2025.
*Some products are scheduled to be released in late October.
*Please note that some products may not be available at some stores.

【Documentary Movie: "SENKU-SHA" - A tribute to the first Japanese woman to climb the Eiger】

"SENKU-SHA" (Pioneer) is a 12-minute short film telling the story of Michiko Imai, who, at age 83, returned to the Eiger with Mammut and reflected on the ascent that impacted her life, told in her own words. We listen, learn, and retrace her footsteps, recreating one of the iconic images from the 1969 climb. Japanese Mammut athlete Yuka Kobayashi, wearing the new "Mammut x Nigel Cabourn" collection, also recreates her ascent of the same route. Check out the trailer HERE.