Hoof boots

[Erray]

Can anyone recommend a hoof boot to use just as a temporary replacement for a lost shoe? I have used old macs in the past which were good but they seem to not last very long. We do quite a bit of riding in the sea so that perhaps doesn't help as I think it rots them, so wondered if there are any alternatives.
The problem is that it can take over a week sometimes for the farrier to get here with being on an island.

 

[Skippys Mum]

What about the Cavallos? they are selling them for £76 a pair just now on ebay. Much cheaper than the Old Macs and I have to say I am quite tickled with mine