What is a primary characteristic of a "full face helmet" in skydiving?

A full face helmet is specifically designed to provide complete head protection, which is crucial during skydiving where the risk of head injury exists, particularly during exit, freefall, and landing phases. This type of helmet encompasses the entire head, ensuring that the face and neck are shielded from potential impacts or harsh wind conditions encountered during the jump. Additionally, a full face helmet features a visor or face shield that helps to reduce air resistance during freefall, allowing for a more streamlined and controlled descent. This reduction in drag can enhance the overall performance during the jump.

The other options touch on various aspects of helmets but do not accurately represent the primary characteristic of a full face helmet. For instance, while visibility is an important factor in skydiving safety, a full face helmet is more focused on protection and drag reduction rather than enhancing field of vision. Also, it is not exclusively designed for experienced skydivers; beginners can use them as well for added protection. Lastly, while weight can be a consideration, ease of carrying is not a defining feature in the context of skydiving safety and functionality.