Cook, matched in orange outfits by Donna Karan at the Solving Kids Cancer Annual Hamptons Luncheon in New York on Aug. 4.

Christie Brinkley and her daughter Sailor Brinkley Cook are twinning and winning. Sailor, 27, who Christie, 71, shares with ex Peter Cook, took to Instagram on Monday, August 4, to show off her matching look with her mom while getting styled by Donna Karan,

Like mother, like daughter. At the Solving Kids Cancer Annual Hamptons Luncheon on Monday, Christie Brinkley, 71, and her 27-year-old Sailor Brinkley-Cook looked nearly identical in matching creamsicle-colored looks.