The Nutty Buddy Flex is a redesign of the original athletic cup, with additional attention towards increasing comfort and protection. In response to customer feedback, the new Flex cup allows for a more comfortable fit for all types of body movements. The soft edges of the cup have been modified to better cushion the contact between the cup and the skin. The redesign also better absorbs impact, "protecting the boys" by distributing force to the pubic bone and soft tissues. The redesign maximizes comfort and effectiveness of the original design, creating a better quality product overall.

Dosun Shin is an Associate Professor of industrial design at The Design School, Arizona State University. He received his Master of Fine Arts degree in Industrial Design from the University of Illinois at Urbana-Champaign in August 2003, and his Bachelor of Fine Arts in Industrial Design from Keimyung University, South Korea in February of 1999. He has been an industrial designer since 1999 working both in design consultancies and corporations. The research Professor Shin has undertaken at Arizona State University is informed by his professional experience and expertise in the area of product design and development. His research interests center around the "humanization of technology" with a specific focus on assistive devices for people with physical limitations.

Mark Alan Littell (born January 17, 1953), a former professional baseball player who pitched in the Major Leagues from 1973 to 1982 for the Kansas City Royals and St. Louis Cardinals, was the first client, and this design was initially made for him. Then, the product design was licensed to Battle Sports Science, the leading provider of youth/adult performance football gear, gloves, apparel and protective gear.