Sports Illustrated swimsuit model Haley Kalil is going solo dolo following her split from ex-NFL star husband Matt Kalil ... throwing on a bikini and hitting the beach in Mexico after filing for divorce.
TMZ Sports broke the story -- Haley filed docs in Los Angeles County on May 4 ... citing "irreconcilable differences" for the falling out.
Despite the recent news, Kalil looked happier than ever as she made her way to Los Cabos for some R&R this week ... wearing a zebra-print two-piece suit as she snapped selfies in the water.