Berkeley Bowl's grape selection is pretty pedestrian. Lots of red and green seedless varieties and some concords (also seedless). One standout though, that for some reason is over by the lettuces, is these Mourvedre grapes. We have a house bias toward Mourvedre as it is the dominant grape in Bandol wines.
As table grapes, they do pretty well. Good dark color, tight clusters, and a flavor akin to but more tart than the ubiquitous Thompson. Like Concords they can be eaten as a 'slip' grape, i.e. you can hold onto the grape and suck the insides out - watch for seeds.