Vans Leopard Slip-On SF Shoes. The Slip-On SF combines a deconstructed low profile silhouette with the Vans Surf SF build to create an upgraded, comfortable slip-on style with a collapsible heel. Made with water-based inks and glues, the Mini Leopard Slip-On SF also features sturdy canvas uppers, a miniature leopard print, molded UltraCush sockliners for upgraded cushioning, Pro Vulc Lite construction, and classic rubber waffle outsoles with single-wrapped foxing tape for lightweight comfort. Gently used see pictures for details WST2