The Final Three was made up of one member from the three original tribes, White Collar, Blue Collar, and No Collar.
The immunity challenge to determine the final four was actually the first challenge that had four of the five contestants blindfolded despite there being a blindfolded challenge earlier this season. Part one of episode four, "Winner, Winner, Chicken Dinner", featured a blindfolded reward challenge. However, Mike and Rodney sat out, and Sierra and Carolyn were each the callers for their team. Therefore, Will was the only player blindfolded in both challenges.
This is the first time in Survivor that an immunity necklace was handed out by competitors instead by Jeff Probst.