Give me a break!!!  This is so ultra cool.  I am offering a Vintage Rare, super unique, Old Style Old Navy jean vest!   The buttons even say "Old navy SF"  .   I dont think they use the SF any longer.   

Look at the design and color scheme and tell me where you can find it..besides right here???   The embroidery is also very unique on the back.  and it even has belt loops on the bottom (not sure why, but cool).  

Size says medium, but it is more like small to me.  Dimentions - 17-18 inches from arm pit to arm pit.   18 inches total length.