Stillsuit

A stillsuit was a full body suit worn in the open desert of Arrakis and designed to preserve the body's moisture. It consisted of layers that absorbed moisture through sweating and urination, filtered out the impurities, and circulated the resulting drinkable water to catchpockets, from which the wearer drank through a tube attached at the neck. Kept in working order and properly maintained, a stillsuit permitted its wearer to survive for weeks in the open desert, and the discipline of its use was central to the survival of the Fremen.

Design#

The stillsuit typically covered the entire body up to the neck and wrists. Gloves could be worn for the hands, but when delicate work was required the Fremen discarded the gloves and rubbed their hands with leaves from the creosote bush, whose residue prevented perspiration and allowed them to work. A facial mask could also be worn so that moisture from the mouth and face was likewise reclaimed. The recognized parts of a stillsuit included the breathing mask, also called the filter or moisture mask, the catchpockets, the gloves, the filt-plugs worn in the nostrils, the recath, the stillsuit cap and hood, and the watertube. When the planetologist Liet-Kynes assisted Duke Leto Atreides I with the fitting of his stillsuit, he explained the workings of the garment to the Duke.

Manufacture#

During the era of the Faufreluches, stillsuits were manufactured both by the Fremen and by private entrepreneurs. Fremen-made stillsuits, however, were widely considered the highest in quality, for they were the only suits that could truly preserve the body's moisture in the deep desert. A Fremen stillsuit lost only an average of a thimbleful of water, between two and five milliliters, in a day.

Use and discipline#

Fremen stillsuit discipline was very strict. Because an individual's body water belonged to the tribe, it was each person's personal responsibility to preserve as much of their water as possible. When crossing the deep desert, utter adherence to maximum stillsuit discipline was the only way to have a chance of surviving, while within the sietch the discipline was more relaxed. One of the measures of the progress of the transformation of Arrakis from a desert planet into a lush world was the point at which the Fremen no longer needed to wear stillsuits in the open air.