What type of seal system can be stretched over a scuba cylinder to adjust it?

The correct choice involves understanding the unique properties of the materials used in dry suit seals and their adaptability. Neoprene is specifically designed to provide flexibility and a snug fit, making it suitable for creating seals that can stretch over a scuba cylinder. This stretchability allows divers to adjust the seal for a secure fit, ensuring that the dry suit effectively retains warmth and provides the necessary buoyancy control.

In the context of scuba diving, a proper seal is crucial for safety and comfort, and neoprene is a popular choice due to its durability and insulation properties. The ability to adjust the seal means divers can accommodate variations in depth and temperature, further enhancing their diving experience.