Lighter and more packable trekking gear is now more available than ever, but sometimes the amount of equipment and food requires an 80-liter backpack. The Rab Hyperon is a high-quality choice for situations where the length of the journey or the amount of gear calls for a large pack. The outer fabrics feature a water-repellent treatment. A light rain shower wont require a rain cover, but for extended rain, its wise to use the included rain cover to protect the backpack. The hip belt is designed to move with your steps, allowing it to pivot independently from the pack. This reduces swaying, helping the backpack stay stable as you walk. - ND = Narrow Dimensions model, with smaller hip belt, chest strap and back length compared to the regular model - Suitable for torso lengths between 43 - 53 cm, measured from the most protruding neck vertebrae to the height of the iliac crest - V-Trax back panel with stepless torso length adjustment - Carefully designed padding on the hip belt an