Cavallo ESP Gel Pad 2-Pack Made from specially formulated ‘Thermoplastic Elastomer’. For greater shock absorption, sole, bar, and frog stimulation, extra cushioning, increased circulation, minimize fatigue, and to tighten fit. Removable insole for additional comfort. Simply cut the pattern to your hoof boot size boot size. Insert into boot. One size fits all! For Temporary use with your Cavallo Boots.