Meet the ideal pair of heels. A wide strap, ankle closure, and thick, solid heel give these shoes a classic look while being comfortable enough to keep you on your feet from day to night. Block Heel Ankle Strap Sandal. Closure: Ankle buckle. Toe: Open. Heel height: 3.5 inches. Material: Suede, Patent, Leather, Brahma or Synthetic. Insole: Synthetic.