Undergarments should fit_____________ and be suited for ___________.

The correct answer emphasizes that undergarments for dry suits should fit comfortably and be suited for layering. A comfortable fit is essential as it allows for ease of movement while diving, preventing any restrictions that could affect buoyancy or take away from the diver’s enjoyment. Additionally, layering is a key principle in thermal protection—having the ability to add or remove layers can help regulate body temperature during various diving conditions.

In cold water diving, layering provides better insulation than a single bulky garment, helping to manage moisture and maintain comfort. This flexibility is particularly important as conditions can change, and being able to adjust the insulation without compromising freedom of movement is crucial for safety and comfort underwater.