The seat belts overlap the device, holding it to the body. The device extends upward about three inches to protect the back of the driver's neck. There are glitches, however, restricting the HANS to ovals. On the road courses, it restricts my breathing a little bit. Because of the pressure on the chest, I can not take a full breath.
Road courses are much more physical.
You are breathing a lot harder. That's what we have to work on next. That is the reason for this. When the senior Hamilton crashed at Michigan in June, his helmet hit and then bent the steering wheel. We're trying to learn more and more about the equipment so that we can be improving on safety all the time.