Old Navy Tanks: Two for $4.23??

It seems not possible, but indeed it is: I purchased the pictured tanks at Old Navy for $4.23...TOTAL.  I mean, they are practically giving them all away!  I find that the Navy is the best spot for tank tops of all styles and colors, hands down.  They are practical, decent quality, well-fitting and cheap as all hell. There is little need to go elsewhere for this particular item.