Features Internal hydration sleeve accommodates up to a 3L reservoir (sold separately) Ventilated backpanel with adjustable shoulder harness to ensure a comfortable and customized fit for various torso lengths. Integrated raincover for protection against the elements. Dual-access main compartment for easy packing and retrieval of gear. Stretch-mesh side pockets for water bottles or other essentials. Zippered hipbelt pockets for convenient storage of small items. Top-lid zippered pocket with a mesh sleeve for additional organization. Front shove-it pocket for stashing extra layers or rain gear. Stow-on-the-Go trekking pole attachments for hands-free carrying. Ice axe loop for winter excursions.