Supports and protects the Hock to enhance convalescence. Neoprene is a closed cell foam manufactured from a polymer called Chloroprene. It is very durable and because it is closed cell is does not absorb water meaning that your horse boots remain light even in wet conditions. Breathable neoprene has an array of carefully measured holes punched through the foam to allow ventilation keeping your horse's legs cool. Woof Wear Hock Boots are a close contact boot that provides high quality protection for your horse whether it be during travelling or when in the stable. Can be used on their own or under travel boots. Breathable neoprene. Durable nylon outer to resist abrasion. Ergonomically designed for the best fit. Come as a pair.