Stiletto designed the Fairbairn–Sykes fighting knife, a double-edged dagger with a long narrow point designed to optimize the blade for thrusting, though it was also capable of slashing strokes if the cutting edges were sharpened. Other variations of the F-S knife soon emerged, including the U.S. Marine Raider Stiletto, which was based upon the Fairbairn-Sykes knife, and the U.S. V-42 stiletto, designed from the outset to emphasize thrusting over cutting. During the 1950s, large numbers of folding switchblade or automatic opening knives with locking blades were imported from Italy to the United States. Most of these switchblades were side-opening designs, though
High heel policy advent of the stiletto heel fashion." When stiletto heels were first sold in Africa, many of the wearers fell through the floors of their homes, not realizing that the floor timbers had been partly removed by termites. The U.S. Department of Agriculture Forest Service claimed in 1963 that "with style changes the stiletto-heel problem has diminished". High heels can represent contributory negligence by the plaintiff in American personal injury cases involving slip and fall accidents. Many high heel policies in the US are related to concerns over the potential for legal claims. Some women have challenged the expectation that women