Puma S3 HRO SRC Crosstwist Low Ankle Safety Shoes are a type of safety footwear designed to provide protection in various work environments. The "S3" rating indicates that these shoes meet the safety requirements outlined in the European Standard EN ISO 20345. They provide protection against impact, compression, and other potential hazards. The "HRO" designation means that the outsole is resistant to high heat. 

Puma S3 HRO SRC Crosstwist shoes typically come with various safety features, such as a protective toe cap made of composite or steel material. The toe cap guards against impact and compression from falling objects. The shoes may also have a puncture-resistant sole to protect against sharp objects penetrating the sole.

The SRC rating indicates that the outsole of these shoes has been tested and certified for slip resistance on both ceramic and steel surfaces. This feature enhances safety by reducing the risk of slips and falls in the workplace.

Puma S3 HRO SRC Crosstwist Low Ankle Safety Shoes are typically constructed using a combination of high-quality leather, synthetic materials, and durable textiles. These materials are chosen for their strength, durability, and comfort.

Features

• Footbed: Evercushion^® pro ESD
• Shaft: Functional leather, textile
• Protection: Composite-fiberglass toe cap, metal-free, flexible FAP® midsole
• Sole: 300°C heat resistant, IdCell, rotation point
  
• Plus: DGUV 112-191, injected protection in the toe and heel area
• Feed: Breath Active functional lining