The Zandona Carbon Air BALANCE Junior Fetlock boots have been studied to defend young jumping horses from collisions and bruises on their fetlocks (in compliance with the international regulations for ‘young horses’ categories). The external TPU structure has differentiated thickness due to the perforated neoprene and is ventilated by 3 air-vents. Carbon fibre elements are present under the shell to thermally insulate the joints from the heat generated by external friction whilst increasing the mechanical resistance to impacts.