The chin strap attaches in the back part of the bit and the rear side of the brilde.
Riddell designed the first chin strap in 1940. They also developed the first plastic face mask.
Chin strap
Bearskin
Jake and Amir - 2007 Chin Strap Beard was released on: USA: 28 February 2012
You would attach the chin strap (not a chain) to the rings of the bit, between the reins and the cheekpieces. The chin strap won't work like one that is attached to a bit with leverage, but it will help keep the bit more secure in the mouth.
with the chin strap secured
Its traditional
If you're talking about a curb strap on a curb bit, then yes, it is required. If you are talking about a curb strap for a snaffle bit, then no, it is not required. Bosals do not require a curb strap. If you are talking about a chin strap for the western hat, no, one is not required. It is not required but I strongly recommend because with out it the bit has too much movement that may confuse the horse.
Mark Buehrle goes by Chin Strap.
A chin strap is a narrow beard that runs from one ear, along the jawline, up to the other ear. It does not cover the cheeks, unlike a full beard, nor does it include a mustache.
Strapping around the head and chin was applied to a dead person until rigor mortis set in, so that the chin would not drop and fall open.