Superfreak is the original stretch boardshort that uses neoprene side-panels for added structure and flexibility. Hyperdry plus and. technology help improve drying time and maximize comfort on and off the board. O'Neill Men's boardshort 21" Outseam- below the knee fit Hyperfreak stretch O'Neill Hyperdry. Techno butter neoprene panels Side zip pocket 89% Polyester, 11% Elastane Superfreak 21" Boardshorts