Page Six may be compensated and/or receive an affiliate commission if you click or buy through our links. Featured pricing is subject to change. You might call it a blockbuster flip-flop. Jennifer Lawrence was spotted in New York City last week, pushing her youngest son in a stroller during a family outing. With the sweltering temps plaguing Gotham, the stylish A-lister kept her outfit light, wearing a vintage Playboy T-shirt, Levi’s denim cut-offs and a baseball hat. Known for her high-low styling, the Dior ambassador accessorized with $380 Thistles sunnies and a Hollywood go-to on her feet: Archies Arch Support Flip Flops. Lawrence joins…