The sporty jack wolfskin velocity 12l daysack is perfect for fast paced activities when weight saving is key despite its modest size the velocity 12l daysack provides a good amount of storage space with a main compartment that features an inside pocket plus an organiser pocket and two mesh pouches the flexible full contact acs tight suspension system ensures a close fit to the back for a wider range of movement an integrated raincover keeps gear dry with reflectors for increased