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: S: 30 L (1830 cu in)
Approx Weight: S: 1.3 kg (2.86 lbs)