The Stability Pro insole is extra pronating, gives extra support to the medial ridge (inside of the foot), absorbs excess perspiration and they promote optimal fit. Among other things, it also provides lateral support to the foot. The antimicrobial top layer made of X-Static with silver fibre is moisture- and heat-regulating. Unpleasant odours do not stand a chance. X-Static is thermodynamic. Excess heat is dissipated, preventing blistering.