Binder twine, always useful! Here we are tacking up the Apache, his first time ever with all the gear I'm trying out – although he's been extensively long lined and very used to ropes just everywhere too. It's why the breeching (the bit around his butt in plain parlance!) is being attached with binder twine, easier to undo, looser this first time if he decides he and driving are-not-a-good-match.