What is a critical component of the dry suit to prevent water entry?

Watertight seals are crucial in a dry suit as they are specifically designed to prevent water from entering the suit. These seals are typically located at the neck, wrists, and sometimes at the ankles, creating a barrier that keeps water out while allowing for a snug fit. This is essential for maintaining dryness and insulating the body in cold water conditions, which is particularly important for the safety and effectiveness of individuals operating in maritime environments.

While watertight seams also contribute to preventing water entry by ensuring that the fabric joints are securely bonded, it is primarily the watertight seals that play a direct role in blocking water ingress at points where the suit is most likely to be compromised, such as at openings for the head and hands. Adjustable cuffs and reinforced fabric add to the overall performance and durability of the suit, but they do not directly prevent water from entering in the same critical way that watertight seals do.