How do anti-piercing safety shoes prevent the soles from being pierced?

The soles of anti-piercing safety shoes are sandwiched with anti-piercing pads, which are usually made of high-density fiber fabrics ( as Kevlar fibers) or metal sheets. When encountering sharp objects (such as nails, glass shards, etc.), these materials can prevent the sharp objects from piercing soles and protect the feet from puncture wounds. The standard stipulates that anti-piercing safety shoes should be able to withstand a certain amount of puncture (such as 1100N) without being pierced. Nowadays, there are many manufacturers of safety shoes, such as Haoyatong Protective Equipment and.