What do I wear underneath my wetsuit? LimeLight Sports Club 08 November 2021 17:32 Updated Follow We recommend that you wear a tri-suit, but it is not compulsory. Regular sports kit over a swimsuit is fine. Related articles Do I need a wetsuit? Is water available during the races? Can I listen to a personal music player whilst racing? What date is my event? Can I use tri bars on my bike? Comments 0 comments Article is closed for comments.