Reks were a sentient species characterized by slender, whip-like bodies. They had thin skin with the texture and temperature of lukewarm rubber. All Reks had brightly-colored eyes; purple was a common iris color for the females of the species. Many Reks sought work as bounty hunters. A group of several Rek bounty hunters working for the crimelord, Nandreeson, captured Lando Calrissian and gave him over to their employer.