Parts of a typical backpacking pack/trekking backpack

Diagram of backpacking pack parts and features Nearly all backpacking packs larger than 45L have all the following features:

  1. Floating top lid
  2. Reflective logo
  3. Zippered quick access pocket
  4. Hydration reservoir sleeve and hose pass-through
  5. Main packbag with extension collar and cinch cord opening
  6. Lightweight main fabric
  7. Load lifter straps
  8. Padded, adjustable shoulder straps
  9. Height-adjustable sternum strap with emergency whistle
  10. Two rows of side compression straps
  11. Padded, adjustable hipbelt
  12. Hipbelt pockets
  13. Top compression strap
  14. Bungee tie-off for ice axe or trekking poles
  15. Daisy chains and lash points
  16. Ice axe or trekking pole tip loops
  17. Mesh open-topped wet storage pocket
  18. Sleeping bag compartment with reinforced bottom fabric
  19. Sleeping pad straps
  20. Stretch mesh water bottle pockets