Advance☆Advance Pi 1 Purchase Hiking & Flying Backpack New with tags Rough Size: Height: 63cm Width: 30cm Depth: Approximately 15cm Photo Attachments: 1. Overall view 2. The top has a net to hold a helmet, etc. 3. Only the right side (when worn) is mesh. Perhaps to protect the glider? Or for better ventilation. 4. Close-up photo of 3. 5. The left side is fabric, not mesh. 6. Back view 7. A hole at the top? Perhaps for a hydration system hose? 8. Bottom of the front 9. Nothing inside Thank you.