Wanda,
I have heard very good things about a boot called B4's. Bonnie who is an endurance rider was tired of losing boots, losing them, having them rub or wear out so she developed these herself. So they don't have fancy advertising as a self built company. But they come highly recommended by a vet/horse person friend of mine.
http://www.b4boots.com/index.html
http://www.b4boots.com/install_video.html
Her write up on this page says the most about it:
http://www.b4boots.com/letter.html
Kathy S.
N TX
Jan 2005