Safety shoes are essential for workers in hazardous environments. They are designed to protect feet from various injuries, such as those caused by falling objects, impact, or crushing.

### Materials
Anti – smash safety shoes are made of durable materials. Reinforced leather, polyester fiber, or composite materials are commonly used. These materials can withstand impacts from heavy objects and prevent sharp objects from penetrating the shoes. Many safety shoes also have puncture – resistant midsoles made from steel or Kevlar. Most safety footwear has smooth or nubuck leather uppers, which offer good protection against the elements and hazards. Some are made with textile or synthetic uppers like micro – velour, which are more breathable and suitable for hot conditions.

### Functions
The primary function of safety shoes is to protect the feet. They are resistant to slipping, abrasion, and puncture. The toe cap is a crucial part, protecting the toes from being crushed. In industries like construction, manufacturing, and logistics, where workers face potential dangers, anti – smash safety shoes reduce the risk of foot injuries. For example, S3 shoes have impact resistance, anti – static protection, water resistance, a puncture – resistant sole, and a high – grip sole, making them ideal for difficult working conditions.

### Selection
When selecting safety shoes, it’s important to choose according to the working environment. Consider the protection level, anti – skid performance, and anti – puncture ability. For airport workers who handle heavy loads and are at risk of musculoskeletal accidents and foot collisions, shoes with anti – puncture soles and protective toe caps are necessary. In construction sites, safety shoes can protect workers’ heels and toes from impacts and prevent slipping on muddy or wet floors.

In conclusion, safety shoes play a vital role in safeguarding workers’ feet in hazardous environments. By understanding their materials, functions, and making appropriate selections, workers can ensure better safety and protection during work.