The 3 Feet Merino Mid from Sidas is a warming insole that is anatomically adapted to the shape of your foot. This individual adjustment ensures that your posture is optimized, reducing the strain on your back and knee joints when running. The intelligent material mix of merino wool and synthetic fibers in the insole ensures top isolation and also has an anti-odour effect thanks to the merino wool content. Last but not least, the 3 Feet Merino Low allows you to move optimally and also offers you pleasant damping - ideal for long days of walking or standing.