BFB Poly Pad Removable insole for additional support with Cavallo BFB Hoof Boots. Enhanced hoof protection. Use for increased comfort, extra cushioning and to ease shock, tighten fit, extend boot life and relieve impact. Molded from specially formulated industrial grade polymer compound to help absorb everyday shock plus provide horse with additional comfort while on the trails. Simply cut pad to boot size and insert into boot. Fits BFB sizes 8 and 10.