http://www.amazon.com/Monkey-Paks-Hydration-Resistant-Compatatible/dp/B00LLNDRJQ
Description:
Capacity: 20L / 1220.47 cubic inches
Material: 600D Nylon
Exterior Dimensions: 17" x 9" x 9"
Durable nylon backpack suitable for anything from an intense hiking session to a leisurely camping trip
Features a spacious main compartment with zip-up closure, interior zip-up and mesh pockets, and front storage zip-up compartments
Secures to your back with an adjustable chest belt and hip belt clasp
Padded and adjustable shoulder straps relieve pressure on shoulders while carrying heavy loads
Breathable mesh backing provides a comfortable feel in hotter weather
Can hold laptops up to 14 in (35.6 cm)
