High Sierra Adventure Outdoor Col 35 Frame Pack mesh Imported 35 liter top load main compartment gusseted drawstring closure and adjustable top lid Internal hydration reservoir sleeve and dual exit ports for tube (reservoir not included) Padded backpack straps with adjustable load-lifters and VAPEL mesh AIRFLOW. Molded foam back panel with AIRFLOW channels to keep your back cool and dry Single Contoured aluminum frame bar can be adjusted to fit the shape of your back 24.25x13.25x8.25 inches (61.6x34x21cm) 2135 cubic inches 35 liters