A drysuit is similar in function to a wetsuit, except for the fact that it that it's dry.(Yuk Yuk) A drysuit is also neoprene with a softer lining, and employs tight seals at the neck, wrists, and ankles to keep water out. Because a drysuit contains air, it has valves that must be connected to the regulator in order to maintain equalization with the outside water pressure.

Drysuits are something of an expensive luxury, and one seldom sees them being used except in fairly cold water.