A bondage harness can be tightened to one's desired level. This is where complications can occur. Secure it too tightly and it can cause cuts and bruises. The experience can be worsened by rough sex play. If things get too hot, a bondage harness can feel tighter and more restrictive. Always stay within comfortable limits. As always, have a safe word, just in case.
In bondage play, it is often used to secure the wearer in a position.
However, the media consistently uses bondage harnesses to represent the fetish community. In popular depictions, those into fetish play always wear bondage harness.