Kendall and Kylie Jenner both showed support for their brother Robert Kardashian by being the faces of his new Arthur George sock line.

"We are so proud of Rob for creating this amazing sock line and we had so much fun at the photo shoot," the two sisters wrote on their website Monday, beside photos from the shoot.

In the campaign, the teenagers wear short shorts that put full attention on the distinct colorful socks. The stars are also joined by two models in the same attire.

Kendall uploaded a video during the photo shoot on June 6 on Keek and said that they are all "having a good time" on set. Kardashian told Ryan Seacrest on his radio show on Wednesday that he used his younger sisters for the ad campaign to put emphasis on the female section of his collection.

In regards to his line, Kardashian wrote on the collection's official website, "I hope that you will find the products here exciting, colorful and fashion forward. I intend to make sure that we bring different twist to our collection while still maintaining the highest quality and finding a way to give back to the community."

When one pair is bought, another one is donated to the charity Fesco, a nonprofit family shelter.

The vibrant socks range from $14 to $30 and the selection includes ankle and knee highs. The collection also offers tights and leggings that are priced at $38. Aside from the online store, the socks will be available at all Neiman Marcus stores beginning July 1.

The line's name is derived from Kardashian's father's middle name George and his own middle name. Rob explained why he didn't use his famous last name to more get attention for his line.

"I want to keep it in my family name and the heritage but at the same time don't overkill everyone with the Kardashian name. I want to kind of step away from what my sister's already established," he told Wonderwall editor Chris Gardner in an interview. "I'm totally going in a great direction and I figured a niche that I really enjoy and I'm passionate about."

The sock line is his first business venture and he said when he needed some direction, he seeked advice and help from his mother Kris Jenner.

"I am so proud of my son for creating this amazing sock line and of my girls for doing so well at the shoot," Jenner wrote on her website on Monday.

Tags
Kendall Jenner, Kylie Jenner, Rob kardashian