A pressure suit is a type of garment that is designed to maintain a constant pressure on the body, usually in high altitude or deep sea environments. There are a number of synonyms for "pressure suit" including: pressure garment, space suit, diving suit, spacewalk suit, vacuum suit, thermal suit, and environmental suit. These suits are typically made from airtight materials and feature adjustable seals that can be tightened to maintain a proper pressure. They are often used by astronauts, deep-sea divers, and pilots of high-altitude aircraft. Each type of pressure suit is designed for specific environments and tasks, ensuring that the wearer can operate safely and comfortably.