Nickal is 5-0 in UFC duals and most recently recorded a knockout victory over Val Woodburn in July.
The singlets feature Penn State's original pink and black color combination.
The Nittany Lions collected four pins and four other bonus point victories.
"We're just trying to be at our best all the time."
Van Ness placed fourth in the Big Ten and third in the NCAA Championships last season.
"It's unreal. It's amazing."