A bladder type partial pressure suit, with quick don, 8 sizes, separate garment (CWU-4/P) for immersion protection, inverted neck seal, HGU/8/P helmet, front entry, get-me-down altitude protection, no ventilation initially. Gloves were needed for longer term exposure to high altitude. Used by Kittinger in USAF stratosphere jump, later used by Japanese.

• Sears, William J, A Historical Review of Partial and Full Pressure Suits, . Accessed at: http://webpages.charter.net/mcelwain/PSUITS-Chronology.htm.