What is the purpose of thermal protection in a dry suit?

Thermal protection in a dry suit is designed to maintain body heat by providing insulation through the use of dry clothing and an air space within the suit. This insulation is crucial during diving, particularly in colder water conditions, as it helps to prevent hypothermia and maintain core body temperature. The dry suit is filled with air that acts as an insulator, while the materials used to construct the suit also contribute to thermal retention.

By ensuring that divers remain warm, the thermal protection allows them to focus on the dive itself rather than being distracted by the cold, ultimately enhancing safety and comfort. This is essential for longer dives or in environments where temperatures can drop significantly. The dry suit, therefore, serves the primary function of thermal insulation, allowing divers to successfully manage their body heat in challenging conditions.