The ClassicFit is lightweight to allow natural movement with support and flexibility and has a fast, simple application. This is the boot that many trainers and horsemen reach for in their tack room. Lightweight sling-style boot allows natural movement with support and protection of horses' lower legs. The suspensory sling is uniquely positioned for correct angle alignment for fast, and simple application. The ergonomic design provides a close, clean fit and bound edges-keep the dirt out! This is the only sling boot on the market with an inner splint pad for superior protection