Designed for climbers, ski tourers, and mountaineers, the Mammut Trion 28 rucksack is built to excel in every season. Lightweight yet exceptionally durable, this pack combines water-repellent, abrasion-resistant materials with a thoughtful design, ensuring peak performance in the harshest alpine conditions.

Developed in collaboration with pro alpinists Stephan Siegrist and Nico Hojac, every detail is optimized for efficiency and reliability. Featuring a quick side-access main compartment, secure ice axe attachments, and a dedicated avalanche equipment pocket, the Trion 28 keeps your essentials within easy reach. Made primarily from recycled materials and equipped with a contact back system for superior load transfer, it allows you to move with confidence—focused entirely on the adventure ahead.

Uses: Mountaineering, Climbing, Trail Running, Via Ferrata, Hiking.

Features

• Two soft flask holders
  
• Carrying system inspired by trail running vests
  
• Elasticated chest strap for optimum comfort and a perfect fit
  
• Large mesh pockets on the shoulder strap
  
• Rolltop closure with zipper
  
• Zippered side access to main compartment
  
• Internal zipper pocket with key clip
  
• Water-repellent external zipper pocket
  
• Two strong ice axe attachments
  
• Trekking pole carrier
  
• Hydration system-compatible
  
• Rope attachment on flap
  
• Lateral compression straps

Specification

• Height: 40cm
  
• Actual volume:  15L
  
• Width: 21cm
  
• Back length: 46cm
  
• Length: 15cm
  
• Weight: 420g
• Base material: 100% Polyamide
  
• Main material: 90% Polyamide, 10% polyester