Option 1: Designers who showed at NYFW during Season 4:
* Christian Siriano: While he didn't win season 4, Christian Siriano went on to have a highly successful career, regularly showing at New York Fashion Week.
Option 2: Designers who showed at NYFW after Season 4:
* Christian Siriano: As mentioned above, Siriano continues to be a prominent figure at NYFW.
* Mondo Guerra: Although Mondo was runner-up in Season 4, he has also showcased his collections at NYFW.
Option 3: Designers who showed at NYFW specifically during Season 4 (i.e., during the show's runway challenges):
* All of the finalists and some other contestants: The Project Runway finale is typically held during Fashion Week, and other contestants often get a chance to showcase their work in various challenges throughout the season.
Important Note: It's worth noting that not all designers from Project Runway Season 4 have gone on to show at NYFW. Showing at Fashion Week is a major accomplishment, requiring significant resources and recognition in the fashion industry.
Let me know if you have a specific question about a particular designer or a specific season of Project Runway, and I'll do my best to help!