Editing Space suit (section)

===Skintight suits===
{{further|Mechanical counterpressure suit}}
Skintight suits, also known as mechanical counterpressure suits or space activity suits, are a proposed design which would use a heavy elastic body stocking to compress the body. The head is in a pressurized helmet, but the rest of the body is pressurized only by the elastic effect of the suit. This mitigates the constant volume problem,{{Citation needed|date=December 2017}} reduces the possibility of a space suit depressurization and gives a very lightweight suit. When not worn, the elastic garments may appear to be that of clothing for a small child. These suits may be very difficult to put on and face problems with providing a uniform pressure. Most proposals use the body's natural [[perspiration]] to keep cool. Sweat evaporates readily in vacuum and may [[deposition (phase transition)|desublime]] or deposit on objects nearby: optics, sensors, the astronaut's visor, and other surfaces.  The icy film and sweat residue may contaminate sensitive surfaces and affect optical performance.