Heidi Klum, 50, shows off her incredibly toned figure in a baby pink bikini in Sardinia

Heidi Klum, 50, shows off her lithe physique in a white mini dress during sun-soaked getaway

Heidi Klum, 50, goes topless in black bikini bottoms in Sardinia

Heidi Klum, 50, shows off her figure in a skimpy white two-piece in Sardinia