Riding boot made of leather with a soft shaft from Horselife. Lining in mesh, strong YKK zipper at the back with a closing snap button. Spur holder. Insole with P.U gel and special "Air boosters" sole. This pump air ventilation system consists of cells that communicate with perforated channels through which the air circulates. The foot compresses this pump structure and the air is pushed into the cells before being channeled to a membrane valve and disappears out of the holes in the heel. When the foot lifts, the cells return to their original position. The external air presses on a small spring inside the valve that activates a one-way membrane, preventing water from being sucked back into the heel.