Breast Plate or Breast Girth?

[JJtheJetPlane]

Hi Guys i have a rather narrow horse, and i find my saddle slips back slightly, Untill he develops more mustle in the shoulder and back areas im considering one of the above. He is only young, i have only had him a few months and he is changing quickly ! Can anyone sugest which would be best?

Thankyou !

 

[Deefa]

Personally breast plate for me!
Just feel they are more secure and also gives you a neck strap on a young horse to!

 

[Toffee44]

If you dont use a neck strap a breastplate is handy to slip a hand under if young horse has a moment or two That would be my choice.