Brain bag color question

I just bought a TB BB off ebay* listed as brand new/never used. Its color is navy. I looked on the TB site, and it appears that navy is currently not an available color.

My question is, how old is this bag probably? When was navy last available, and when might it be offered again?

thanks so much! :)

(*future bags will be purchased directly from TB website.)

if i'm not mistaken, the brain bag was available in navy in 2007.

darcy, can you confirm?

Navy was also available in 2008 and early 2009.