A dry suit should fit so that what is allowed for layering?

The correct response emphasizes the importance of allowing room in a dry suit for layering. When diving in colder water, divers typically wear thermal undergarments beneath their dry suits to provide insulation. A properly fitting dry suit should accommodate these layers without being so tight that it restricts movement or circulation.

This extra room is crucial not only for comfort but also for the effectiveness of the thermal layers, as overly tight suits can compress insulation materials, significantly reducing their ability to retain body heat. Therefore, understanding that a dry suit should fit with enough room for layering is vital for ensuring both safety and warmth while diving.