Sac à Dos Randonnée 50L Étanche & Ultraléger | AJ Summit Lite

This 50L ultralight backpack is designed for multi-day hikes, featuring waterproof nylon, breathable mesh, and 12 compartments. It weighs 790g, making it suitable for endurance hikes like the GR20 or Queyras.

• The description claims that reducing weight by 700-800g over 5 days of hiking can save about 15-20% of muscular energy.
• The description claims that the backpack is designed to reduce back sweating.