Keratex Mud Fever Powder Mud Shield PowderPractical and easy to use powder. Applied to the horse's legs for a cleansing and waterproofing action, ideal for legs prone to crusting in wet and muddy conditions. This lightweight talc gives your horse's legs a breathable, water resistant powder coating that does not absorb water (and therefore does not become sticky). It also makes the leg hair silky so that mud cannot cling to the hair or soften the skin beneath. In addition, it supports the