I needed a bag that would be suited for my daily cycle but something I could also use as a day bag when away at weekends. The Quasar managed to fulfil all my criteria with comfortable padded straps and back support, and good zip covers that so far have kept out all the rain.
The bag has a large main compartment which works well for weekends when just want to stuff clothes or climbing stuff in, but also 2 additional smaller pockets which comfortably fit keys/pens/notepads etc. The main compartment also has 2 sleeves, including one for laptops and the other can be used for papers. Osprey make more complex (and pricier) bags but this one seems to strike the right balance. Overall a great all round bag which can fit waterproofs and gear for a day when away at the weekend, but also is practical for the city.