Microperforated neoprene AEROX and 3D mesh ducted fabric guarantee double ventilation. Heat passes through the microperforated layer and is distributed through the 3D mesh. Air is tunneled through inlets during movement, directing body heat outwards. Ventilation is both horizontal and vertical. Equipped with shock absorber system, easy-to-care for waterproof outer and strong double velcro closure for a perfect fit. Sold in pairs.