This is a very unusual catch, achievable ony via one or two tricks. Unlike a normal legs catch where the catcher holds the flyer's legs BEHIND their shoulders, for the Reverse Legs the legs are held in front of the chest. The flyer is facing the catcher (so facing downwards at the moment of the catch).
You can find out more about this trick in my books:
Thanks to Deryn, Ted, Olma and the team at Circus Arts Australia for providing this video.