Professionals Choice SMB-3 Sports Medicine Boot Front or Rear (pair). The SMB-3 is a hybrid between the two best selling protective boots_ the original SMB II and the new standard_ the SMB Elite . The exterior is constructed with Professional's Choice signature limestone-based neoprene. Together with an UltraShock lining_ the SMB-3 safeguards the cannon bone_ tendons and soft tissue_ while absorbing energy from hoof impact. The slightly longer suspensory strap stretches upon each impact of the hoof_ allowing full ankle movement_ helping to eliminate hyperextension... - Professionals Choice SMB-3 Sports Medicine Boot Front or Rear (pair). | 
