“Soft Active Kneeguard” have been studied to defend from collisions and bruises the knee, while damping from small bumps above and on its sides. They are made of perforated neoprene for ventilation, elastic inserts and back closure by velcro. The internal padding is composed by E.V.C. (Evoluted Viscoelastic Cells), innovative waterproof anti-shock material with high performance/weight/thickness rate, completely perforated to increase perspiration from the contact area to the outside. The sock is made with precious transpiring textiles, Lycra® in the front and elastic honeycomb-net-textile on the back. The limited thickness of the padding, outstanding fit and the application of silicone-grip on the inside of the elastics provide excellent stability. The shape and dimension have been studied to copy the limb structure while avoiding any kind of stress.