-Adjustable torso length -AirScape™ mesh covered accordion foam backpanel for comfort and fit -Base zip entry -External hydration access -Internal key attachment clip -Internal top load compression strap -LED light attachment point -Light weight peripheral frame -Removable sleeping pad straps -Removable top lid with dual compartments -Seamless lumbar to hipbelt body wrap -Sternum strap with emergency whistle -Stow-on-the-Go™ trekking pole attachment -Stretch front pocket -Stretch mesh side pockets with InsideOut™ compression -Stretch pocket on harness