Kerri Walsh Jennings is in her fourth Olympics — going for her fourth ... the 37-year-old star and her partner, April Ross, went ahead and designed their own sport bikinis.

Ross, 42, won an Olympic gold medal with Alix Klineman at Tokyo in 2021. She also won silver in 2012 (with Jen Kessy) at London and bronze in 2016 (with Kerri Walsh Jennings) at Rio de Janeiro.