Technical Glossary — Backpacks

Technical Glossary — Backpacks

All technical terms related to outdoor backpacks, listed in alphabetical order.

Pole Attachments
Side attachment system for storing trekking poles on the backpack without holding them by hand.
Padded Shoulder Straps
Shoulder straps with integrated foam to distribute weight and prevent chafing over long distances.
Hip Belt / Lumbar Belt
Hip strap that transfers the backpack's weight to the pelvis. Essential for loads over 10 kg to protect the back.
Hydration Pack Compatible
Dedicated compartment for a soft hydration bladder (e.g., Camelbak) with a port for the hydration tube.
Multi-sport / Multi-terrain
Backpack designed to be versatile across different disciplines (hiking, mountain biking, trail running, skiing).
Sternum Strap
Strap connecting the shoulder straps across the chest to stabilize the backpack while moving and prevent swaying.
AirPillow System
Load distribution system integrated into the back of the backpack to improve comfort and back ventilation.
MOLLE System
Modular Lightweight Load-carrying Equipment. A webbing system allowing attachment of modular pouches and accessories to the backpack.
Water Repellent Treatment
Hydrophobic protection applied to the backpack fabric to repel water splashes and light rain.
Volume (liters)
Total capacity of the backpack. From 10L (short day trip) to 80L+ (expedition). See our Backpack Size Guide to choose the right volume.