Picked this up in a Vancouver, Canada second-hand clothing store and am interested to find out if this is a San Fran Giants prospects jersey...perhaps a futures game jersey etc.?

Brent Swanson (from the Vancouver area) was signed by Giants and reached AAA, with the 2005 Fresno Grizzlies.

Jersey has "TEAM MLB" tagging, a USA flag sewn in in the back of the collar and pro-quality numbering and nameplate lettering.

Any help would be appreciated! Thanks!