The Veredus Olympus Vento Fetlock Boots offer excellent protection whilst helping to keep your horses legs cool and comfortable. Keeping your horses legs cool during exercise helps to prevent injury. The heat released from the horse's leg passes through the micro-perforated neoprene layer in the boots and is distributed in the 3D mesh ducted fabric. Fresh air enters through the air inlets and directs the heat upwards to the outlet grid. The ventilation is therefore both horizontal and vertical. The protection of the rear fetlockis guaranteed by a shock absorber film in EVA with aDouble Density anatomic shell for maximum protection. Features Breathable and protective fetlock boots. Double ventilation to help keep legs cool. Aerox microperforated neoprene. 3D mesh ducted fabric. Double Density anatomic shell. Available in Black or Brown. Size Guide Available in Pony (Small), Full (Medium) or Extra Full (Large).