Sphre AIR (XID) is a unique coin with a unique idea: decentralized ID management.

Their ICO was successful, but never had a big chance to take off, since the price of the coin rose during the boom, and then dropped like the other alts.

Their market cap is 7 million (maximum supply is 30 million). That is TINY for such an ambitious project.

They have a very impressive looking team.

Under-the-radar coin that has massive potential for a 10x.