Patient slings are typically made of a durable and breathable fabric that can support the weight of the patient while also being comfortable against the skin. Here are some common materials that patient slings are made of: 

1. Polyester: Polyester is a common material used in patient slings, due to its durability and strength. It is also lightweight and easy to clean, making it a practical choice for use in a healthcare setting. 

1. Nylon: Nylon is another common material used in patient slings, due to its strength, durability, and resistance to tearing. It is also lightweight and easy to clean. 

1. Mesh: Some patient slings are made of a mesh material, which allows for air circulation and helps to prevent the buildup of moisture and heat. Mesh slings can be comfortable and lightweight, but may not be as durable as other materials. 

1. Padded fabric: Some patient slings are made of a padded fabric material, which provides extra comfort and support for the patient. Padded slings can be especially useful for patients who have sensitive skin or who require additional cushioning. 

The specific materials used in a patient sling can vary depending on the manufacturer and model. It is important to choose a patient sling that is made of high-quality and durable materials to ensure that it can support the weight of the patient and provide a comfortable and safe transfer. It is also important to ensure that the patient sling is installed and used correctly, according to the manufacturer’s instructions, to prevent accidents and injuries.