Ventilated neoprene gives some ankle support and protection. Keeps dirt out of your shoe. Molded plastic cups protect ankle bones.
# Ankle support and protection that can be used in any brand of shoe.
# Fits inside shoe: remove insole and replace with trimmable Ankle Biter. Reinsert insole. No shoe size change.
# VelcroŽ front closure for accurate snug fit.