It did take some tinkering to figure out the heel length and I think there could be more instructions on how to judge it.

Originally, we did some lunge line trials and the horse was definitely more comfortable with them on than barefoot even though there are no pads. As the hoof flaring has improved over time, the shell portion improved in fit though one hoof still shows a little gap at the top.

The adjustable heel sling made it possible to use these boots and also stayed away from a previous heel rub area that was healing. After determining the correct size, I ordered through RW.

For the Fury Slings, I originally ordered the Easycare Fit Kit (through Easycare) to see if the shell would work and it seemed to accommodate the flaring a bit better. The boot part didn't handle the flaring in his hooves either. Originally, we tried the Scoot Boots but my geldings heels were too tall so the boots did not work. Comments: We had used Cavallo Trek boots for many years for a 'recovering laminitic' (arena riding only) and I wanted to see if I could find something that was less bulky.

Easyboot fury