From the Manufacturer:
A classic top-opening day pack that gives high performance, agility, and comfort.
Fully featured, it has proven to be a superb friend for many outdoor activities. Add Balance Pockets for two to three day trips.Key Features:
Approx Volume: L: 33 L (2013 cu in)
Approx Weight: L: 1.4 kg (3.08 lbs)