What is the primary purpose of using a wetsuit or drysuit while diving?

The primary purpose of using a wetsuit or drysuit while diving is to provide thermal insulation and help regulate body temperature. When divers descend into water, especially at significant depths, temperatures can drop dramatically. Both wetsuits and drysuits are designed to trap a layer of water between the suit and the skin, which is then warmed by the body heat. This insulation allows divers to maintain a safe and comfortable body temperature, preventing hypothermia during longer dives or in colder environments.

While bouyancy control, swimming speed, and protection from abrasions are also important considerations in dive equipment, the essential function of wetsuits and drysuits focuses primarily on thermal protection. A well-insulated suit keeps divers warmer, allowing them to enjoy their dive for longer durations without the discomfort or dangers associated with cold water.