Alpinestars Knee Brace Socks Red / White. They are a version with a single layer, with an elastic knit and with reinforced areas that offer less thickness and greater freedom of movement. Flexible, ventilated and with fine padding, they are a point of reference in this type of Cross socks. They offer great resistance to friction, durability and excellent moisture control. They have an elasticated top hem with internal silicone insert.