A diving mask is a piece of equipment used by divers to see clearly underwater. It typically consists of a rigid frame, a lens for vision, and a silicone skirt that creates a seal around the face. This design allows divers to equalize pressure and prevents water from entering the mask, providing a clear view of the underwater environment. Diving masks come in various styles and sizes, catering to different face shapes and preferences. Some masks include additional features like a built-in snorkel or prescription lenses for those who need vision correction. Proper fit and comfort are essential for an enjoyable diving experience.