To my knowledge there are only two different REI variants.
Not too sure if there is a third or not but the one you have may be "REI Preto". I forgot what the 2nd one is called but I am thinking something in the "B" word i.e., Branca, Blanca or Bianco. I could be wrong on either one as well.
I will do a little research when I have time.
Nice looking fig BTW.