Replacement ImpacTeq Extended Liners for D-Teq Hind Boots from Equifit are designed for horses that interfere behind and need extra coverage. The liners pair with the D-Teq boots and offer ImpacTeq technology along with EverLeather strike pads to create an complete coverage liner. These liners provide a protective shield upon impact, reducing shock and vibration when interference occurs. Sold in pairs.