"She then proceeded to tell me that the men at the pool would feel more comfortable if I was in a one-piece swim suit because a bikini isn't appropriate for a mother, especially one who's 'still recovering.'"
Sinclair wrote that she responded a smile and told the woman she is proud of her body.
"In just one year I've gained 50 pounds, and lost 37. I've grown a human and given birth to a beautiful miracle. My body provided food for my child,'" she said.
"So, no, my body might not be the best sight for other men to see. My stretch marks and tummy pudge might not be sexy," she said. "But they're proof that I've done something amazing, and I have a man that loves me and finds me even sexier and more beautiful now."
Sinclair added that she told the woman she doesn't care what she or anyone else at the pool thinks, and wished the woman a nice day.
The post was met largely with praise and has been shared over 12,000 times.