Replacement UltraWool ImpacTeq Liners for EquiFit D-Teq & Eq-Teq Hind Boots are a great option to offer your horse more comfort and versatility during your ride. The UltraWool won't mat after washes and is hypoallergenic, making them the perfect option for sensitive horses. The liners velcro securely into place and are machine washable. Keep a clean pair on hand for every ride.