A dry suit or drysuit provides the wearer with environmental protection by way of thermal insulation and exclusion of water, and is worn by divers, boaters, water sports enthusiasts, and others who work or play in or near cold or contaminated water. A dry suit normally protects the whole body except the head, hands, and possibly the feet. In hazmat configurations, however, all of these are covered as well.
U.S. Navy divers in contamination dry suits preparing to dive
Rubber on two way stretch knit fabric has an external surface that is relatively easy to decontaminate
Membrane drysuit in icy water
The neck seal, the zip, the inflator, a wrist seal, and the manual cuff vent of a neoprene dry suit
A wetsuit is a garment worn to provide thermal protection while wet. It is usually made of foamed neoprene, and is worn by surfers, divers, windsurfers, canoeists, and others engaged in water sports and other activities in or on water. Its purpose is to provide thermal insulation and protection from abrasion, ultraviolet exposure, and stings from marine organisms. It also contributes extra buoyancy. The insulation properties of neoprene foam depend mainly on bubbles of gas enclosed within the material, which reduce its ability to conduct heat. The bubbles also give the wetsuit a low density, providing buoyancy in water.
Spring suit (shorty) and steamer (full suit) one-piece suits
Scuba divers in one-piece full-length wetsuits, one wearing a hood
One-piece suit worn by kitesurfer
High visibility suit for sea rescue