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A dry suit or drysuit provides thermal insulation or ''passive thermal protection'' to the wearer while immersed in water, and is worn by divers, boaters, water sports enthusiasts, and others who work or play in or near cold water. A dry suit normally protects the whole body except the head, hands, and possibly the feet. In some configurations, however, all of these are covered as well. Dry suits are used typically in these cases: * where the water temperature is below 15 °C (60 °F). * for extended immersion in water above 15 °C (60 °F), where discomfort would be experienced by a wet suit user. * with an integral helmet, boots, and gloves for personal protection when working in and around hazardous liquids. The main difference between dry suits and wetsuits is that dry suits are designed to prevent water entering. This generally allows better insulation making them more suitable for use in cold water. Dry suits can be uncomfortably hot in warm or hot air, and are typically more expensive and more complex to don. For divers, they add some degree of complexity as the suit must be inflated and deflated with changes in depth in order to minimize "squeeze" on descent or uncontrolled rapid ascent due to over-buoyancy. ==Components== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「dry suit」の詳細全文を読む スポンサード リンク
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