Which of the following is NOT a common feature of anti-exposure coveralls?

Inflation capability is not a common feature of anti-exposure coveralls. These coveralls are designed to provide thermal protection and keep the wearer dry by being water-repellent. They typically incorporate insulation to retain body heat when immersed in cold water and have multiple adjustability points to ensure a secure fit that minimizes water entry and maximizes thermal protection. In contrast, inflation capability is a feature more commonly associated with life jackets or inflatable personal flotation devices rather than with anti-exposure coveralls, which focus on thermal regulation and protection from the elements rather than buoyancy assistance.