It is named The Mantles because of the series of mantles that take you up this route. This wall is slightly overhanging, so getting onto the second mantle is very awkward. Once there, the crux is a reachy move. You can use the two crimpers on the right to get your right foot up to the third mantle, or you can use one of the crimpers one the right and a solid hold to the left.
This is to the right of the wall's most apparent climb, Butcher Knife Crack.
Apparent bolts at the top of this climb. They also serve the Bear Hug.