Whether for a weekend, head-clearing trek or a week-long mission, this mid-sized, backpacking pack offers ample space for your essentials - plus some creature comforts. The detachable lid converts into a hip sack for day trips out of basecamp. Key Attributes: a The Astral Frame is a robust frame that supports large loads. The mainframe is comprised of four vertical, composite stays, dense foam for flexibility and for torsional rigidity. Through patented features and construction methods, the mainframe transfers the weight of the load into the wings which relay the weight and equalizes the contact around and into the belt. The waist belt cants and conforms over the hips to effectively transfer and distribute the weight and eliminate slippage down over the hips. a The patented Futura Yoke easily micro adjusts to the torso length allowing the proper amount of stand-off between the back and frame. Features: Top-loading design for easy/secure packing Convertible Daypack Lid feature Side zip for easy access to main bag without unpacking Two, exterior vertical long pockets Speedzip(TM) compartment for easy access to sleeping bag Water bottle pockets Tool carry attachment between back, vertical torpedo pockets Cross compression with buckle release for accessing side zips Hydration reservoir compatible Five-point lumbar belt system Built on the NEW Astral Frame Materials: 500D Lite Plus CORDURAA(R) fabric YKKA(R) zipper Specs: a Weight: 6.4 lb a Volume : 4320 cu-ins a Dimensions : 34.5"x13.5"x13.5" a Frame System : Astral Frame a Harnessing Style; Framed