counterpressure suit

A space activity suit (SAS) or mechanical counterpressure suit is an experimental spacesuit which applies stable pressure against the skin by means of skintight elastic garments.

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 potential for greater mobility and simpler operation with a skintight spacesuit, generally referred to as a space activity suit or mechanical counterpressure suit, make this type of space suit an attractive choice for fiction, where flexibility of use can be a boon to plot development.