Ive tried Old Mac G2's, Deltas (new cavallo's) and now the Easyboot Edges.
My favourite out of them is definitely the Edge, I've gone off boots coming above the coronet so really like the design of easyboots.
Favourite boot over-all is the easyboot Glove, but this won't fit my horse yet so have to wait a while.
Have a look here EasyCare Inc. | The Leader in Hoof Boots and Natural Hoof Care
for all the info you need about hoof boots