A diving suit is a garment or device designed to protect a diver from the underwater environment. Modern diving suits can be divided into two kinds:

• "soft" or ambient pressure diving suits - examples are wetsuits, dry suits, semi-dry suits and dive skins
• "hard" or atmospheric pressure diving suits - an armored suit that permits a diver to remain at atmospheric pressure whilst operating at depth where the water pressure is high. Main article: atmospheric diving suits.