American Instagram star who shares an Instagram page with his brother Ryder Knapp. The brothers' Instagram account has earned over 20,000 followers. He has been a member of the webgroup Ryder and Penn.
He began posting to his Instagram account in July 2018. He went surfing with his dad and grandpa in July 2018.
He went paintballing with his brother Ryder to celebrate Ryder's 10th birthday.
He dedicated an Instagram post to his mother and father in July 2018. Both of Penn's parents are photographers.
He posted a photo riding in a car alongside fellow web star Sophie Fergi in August 2019.