Protective aviation garment

A garment configured to protect a user during aircraft flight, the garment comprising:

• a bladder layer configured to retain a first pressurized fluid and apply pressure to the user, the bladder layer being a semi-permeable layer which is impermeable to both oxygen and nitrogen and permeable to water vapor;
• a first fluid tube formed as part of the bladder layer and configured to deliver the first pressurized fluid to an interior of the bladder layer;
• a cover layer formed from a fire-retardant fabric, the cover layer surrounding an exterior of the bladder layer, the cover layer sealed around the first fluid tube and allowing the first fluid tube to pass therethrough;
• and
• two thigh seals configured to seal the bladder layer to the user such that the bladder layer forms a lower volume and an upper volume, wherein the first fluid tube is configured to deliver the first pressurized fluid to the lower volume.