NIB Women’s Size 10.5 These have never been worn!! The Classic Slip-On, with its “No Laces, No Problems” approach, was first introduced to the world in 1979. Since then, it’s become a pop culture icon, known for its ability to dress up or down, its reliable comfort, and the flexibility to adapt to everyone’s style. With an enduring leopard print paired against black canvas, the Classic Slip-On is a timeless silhouette that’s right for any occasion.