Farrier chaps come in two varieties: filled chaps, which cover the entire leg, and half chaps, which only cover the lower leg. They might also have extras like tool boxes, adjustable straps for a better fit, and neon trim for increased visibility at night.
Overall, since they shield them from damage while they operate on horses, farrier chaps are an essential piece of safety equipment for farriers.

https://www.equinecares.com/collections/farrier-apron