What type of zipper may be an option on some dry suits?

Many dry suits are equipped with different types of zippers for functional reasons, and among these, both cover zippers and relief zippers serve distinct and important purposes.

A cover zipper is typically designed to protect the main zipper from water entry and adds an extra layer of insulation against the cold. It may also help to keep the zipper from snagging and ensure smooth operation over time. Depending on the suit's design, it may run parallel to the main zipper or cover it entirely when closed.

On the other hand, a relief zipper is specifically designed for ease of use when the diver needs to relieve themselves while wearing the dry suit. This feature allows divers to remain in the water for longer periods without having to fully remove the suit, which can be a significant convenience during dives.

Having both types of zippers on a dry suit enhances its functionality and user-friendliness, catering to the practical needs of divers. Thus, the incorporation of both cover and relief zippers offers a well-rounded design that maximizes comfort and effectiveness for various diving scenarios.