No you do not. You can use a leather girth with no fleece if your horse goes well in that. However synthetic girth are typically frowned upon for showing as they do not look 'good enough' for the show ring. Use which ever type of girth is most comfortable for your horse.
Any girth can pinch a horse. A Fleece covering can protect it furthur, but after tightening the girth, if you pick up the horses foot and streatch it forward, it pulls the skin out from underneath and does not at all hurt the horse. Do this with both front feet.
fleece
If your sidesaddle is English it will most likely have three girths: 1. The main girth is a Standard English girth - this would be the same type of girth you would use on a regular "astride" saddle. If you have a "girthie" horse, consider a fleece lined girth for your horses comfort. 2. The second girth is a "Balance Strap" - not all sidesaddles have a "Balance Strap", if it does not have a balance strap it is not meant for Jumping. It prevents the saddle from popping up or shifting to the left if the rider is not balanced. The Balance Strap should be snug but not as snug and the main saddle girth. Note: Some sidesaddles have the "Balance Strap" sewn to the saddle and you would buckle the balance strap to the first billet. 3. The third girth is an "Over-girth", it holds down the flaps of the saddle and you would only need to fasten it tight enough to keep the saddle flaps secure.
8 in girth
Girth sore or Girth Galls. these can be prevented by cleaning the horse and the girth just before tacking up.
Zip ups are a popular boot. Fur lines or fleece lined are popular, with a bit showing out the top of the boot.
In fleece factories.
a fleece
Fleece is a word that rhymes with piece and refers to the wool of a sheep.
fleece vs Coral velvet
Girth - album - was created in 1997.
No one can ignore his girth.