The Lowe Alpine AirZone Trek 35:45 Backpack is engineered for exceptional carrying comfort and convenience, making it an ideal choice for your next adventure. Featuring the innovative AirZone + Carry System with FormKnit Technology and an internally adjustable back length, this backpack offers unmatched cushioned comfort and a custom fit. With practical pocket space and smart storage solutions, the AirZone Trek 35:45 ensures your gear is well-organized and easily accessible. Its expandable design allows you to extend the capacity from 35 to 45 liters, providing flexibility for additional gear on the go. Perfect for long treks and spontaneous excursions, this versatile backpack adapts to your needs seamlessly.  Lowe Alpine Airzone Trek 35:45 Backpack Features: Airzone +™ Carry System 210D 6.6 Mini Ripstop / HydroShield Fabric Zipped Front Entry with Divider Panel Stretch Mesh Front Pocket Front Lash Points Featuring Formknit™ Technology Internally Adjustable Back-Length Breathable Harness and Hipbelt Headlocker Axe Attachment System Secure Tipgripper Walking Pole Attachments Large Stretch Mesh Side Pockets External Zipped Lid Pocket Forward Pull Hipbelt Adjustment with Zipped Hipbelt Pockets Internal Zipped Security Pocket with Key Clip Rain Cover Weight Approx 1.65kg