a camouflage-printed trucker hat featuring an embossed leather patch that reads “Girl Dad,” a sweet homage to his seven-year-old daughter Lea, whom he shares with ex-girlfriend Irina Shayk.

They joined us in studio to tell us all about Mommday Official. The company started out with those trendy trucker hats, because the sisters say they love hats and wear them every day. They say ...