@ecileh --well, cough, I started using safety stirrups when I WAS MFH. That was quite a few years ago --and one club ago --since joined Battle Creek Hunt where safety outweighs tradition --we do some pretty rough riding on some challenging country. While I choose to wear my safety vest under my hunt coat and vest (over my shirt) --two members wear theirs over their coats. One is the inflatable kind --so really no choice there --the other is a hard-shell like mine --but the vest is black so really not too noticeable. Personally, I think the rider in the red coat, should wear a red inflatable vest . . .but no one asked my opinion.
Various adaptations have been acceptable —riders can/do wear paddock boots with black leather gaiters rather than hunt boots --I still have the hunt boots, no zipper, patent leather tops --hoping I don’t have to replace them ever --so I wear Mountain Horse Ice Riders (as does everyone else since we hunt all winter long in Michigan). When it is horribly cold, any black coat is allowed even if not a hunt coat.
The important thing to our hunt is the safety and enjoyment of the membership --without members, we have no hunt!