PRONATION CONTROL FEATURES: For those athletes who suffer in the foot arch area in their sport practice.The V-shaped technology on both foot sides provides full control, especially in the first impact phase.By lifting the arch to prevent pronation and descent, the heel simultaneously stabilizes in a neutral position, diminishing the risk of injury.Composition: 91% Polyamide – 9% Elastane BENEFITS: Internal fixation with a silicone band in the cuff preventing displacement or movement of the sock during the sport practice.The fabric has been designed in order to avoid any kind of rubbing on the skin as well as to prevent snagging with external elements.Stabilizes the ankle and prevents possible injuriesReduces muscle fatigue and tiredness during long-duration sports activities.Long-lasting Technology: over 150 washes.