The Jason Bourne
star appeared completely confident in her red-and-white polka dot & Other Stories bikini, which featured ruffles and a teeny bandeau top with a ring. The sporty two-piece highlighted the 28-year-old actress' ripped body, which her trainer, Magnus Lygdbäck, told Self
is a result of a strict food and fitness program that's "not too far off what professional athletes undertake." These workouts include boxing, heavy lifting, climbing and high intensity interval training.