They are made of perforated neoprene for ventilation, elastic inserts and velcro closure. The inner padding is made in E.V.C. (Evoluted Viscoelastic Cells), an innovative anti-shock, water-repellent rubber with high performance / weight / thickness ratio, fully perforated to facilitate transpiration from the body-to-body contact area. The limited thickness of padding, exceptional fit and grip-silicone application on the inside of the elastic straps guarantee excellent stability. The size and the shape have been designed to best follow the limb structure avoiding any type of stress.