The material and design of slippers typically feature lightweight, waterproof materials such as EVA, rubber, or soft PVC, with a focus on breathability, wear resistance, and comfort. Some styles also incorporate anti-slip patterns and ergonomic designs to enhance practicality.

Many swimmers have stated that slippers are essential equipment during training, especially before and after competitions. Comfortable slippers can prevent foot injuries and discomfort.
The drawbacks of slippers include their tendency to wear out easily, inadequate support (which can lead to foot issues with prolonged use), insufficient anti-slip properties (making them prone to slipping on wet surfaces), and the fact that some low-cost materials are not breathable, leading to stuffy feet.