Safety shoes are essential safety footwear designed to protect feet from various hazards. They are crafted from a range of materials, each selected for its specific properties.

### Materials
Anti – smash safety shoes usually utilize durable materials with high resistance to abrasion, impact, and puncture. Reinforced leather, polyester fiber, or composite materials are commonly used. These materials are capable of withstanding impacts from heavy objects and preventing sharp objects from penetrating the shoes. Additionally, safety shoes can be made from a combination of leather, rubber soles, and even wood.

### Functions
The primary function of safety shoes is to safeguard the feet from injuries. They are made with slip – resistant materials to prevent slips, trips, and falls. Slip resistance is crucial, especially when the walking surface is wet or exposed to other liquids. The most common slip – resistant soles are made of rubber with an extra layer of granular materials like quartz or silica to provide additional traction. Safety shoes also have a toe cap that protects the toes from being crushed. Moreover, they can prevent feet from insect and animal bites and protect against hot or rough surfaces.

### Types
S1 safety shoes are a well – known type. They are engineered to protect against injuries from sharp objects. Made from hard plastic and steel with a steel toe cap, they are suitable for industries such as construction and manufacturing. However, S1 safety shoes do not have a puncture – resistant sole that is also slip – resistant.

In conclusion, safety shoes come in different materials, perform various functions, and are available in different types to meet the diverse needs of different work environments.