Stylish gray espadrille flats with buckle detail. Free People Oasis Mary Jane Espadrilles in Washed Nautical Blue. These dreamy shoes capture a carefree, vintage-inspired vibe with their hand-washed, dyed textile upper—each pair boasting a perfectly lived-in look. The round toe silhouette adds soft elegance, while the circle-frame buckle strap brings a playful, retro flair.