What is the difference between a wetsuit and a drysuit?

A wetsuit allows water to enter the suit, which is then trapped between the suit's material and the diver's skin. The temperature of the body warms this thin layer of water, providing insulation and helping to keep the diver warm. This design is particularly effective in warmer waters where some water circulation is acceptable and even beneficial for temperature regulation.

In contrast, a drysuit is designed to keep water completely out. It is sealed at the neck and wrists with gaskets and is usually insulated with thicker materials or layers, allowing the diver to wear additional undergarments to enhance warmth. This makes drysuits suitable for significantly colder water conditions, as they maintain a dry environment to better protect against hypothermia.

This distinction emphasizes the primary purpose of each type of suit and their applications in different water temperatures. Understanding this fundamental difference is vital for divers to choose the appropriate suit for their diving conditions, enhancing safety and enjoyment during underwater experiences.