Gigi Hadid brightens up a gloomy NYC day in a yellow tracksuit while taking Khai for a stroll

Gigi Hadid dotes on daughter Khai while wearing a stylish sweatsuit around Washington Square Park

Nicky Hilton wears pink cardigan with black bows as she runs errands in NYC

Vogue Williams and Spencer Matthews take baby daughter Gigi and son Theodore for stroll in the sun