dry suit

Air- and watertight suit for use in extremely cold water, marketed to surfers for the first time in 1972 as an alternative to the wetsuit. Dry suits are made of thin, nonporous rubber, similar in thickness and consistency to the material used for an innertube (wetsuits are made of a thicker closed-cell neoprene rubber); they were developed by the U.S. Navy during World War II, and navy divers were...