I am going to start the posts on what types of bitless bridles with the Sidepull.
These are the simplest of the bitless bridles. Anyone who has attached a leadrope to either side of their headcollar and ridden in it has used a sidepull.
It works only on the nose, either on the front of the nose when pressure is applied to both reins or on the side of the nose if one rein is used. It gives a direct rein aid and is considered mild as it doesn't have straps that tighten round the nose, jaw or face, nor does it have any leverage on the poll.
Rope - a rope halter halter with rings either side to attach the reins.
Synthetic materials - webbing or beta biothane available either as noseband attachments or a complete bridle.
Leather - also available as nosebands to attach to a bridle or as a complete bridle, sometimes with stabilising straps.
Sometimes they are available in leather with a very stiff rough rope noseband, either or single or double rope (often available from western shops) these nosebands can be quite harsh on the horses face so should be used with caution.
I find that the sidepull is one of the best bridles to start a youngster in, the aim in bitless is to try and achieve the lightest possible feel so starting with a simple bridle and teaching the horse to respond to that lightness will produce a responsive horse.
Thanks to Vicki of Inspirational Horsemanship for the use of her photos.