After an operation or in the event of slight sprains or repeated overloading, the ligaments of the foot are often weakened and require increased stabilization. The Bauerfeind MalleoTrain "S" Ankle Support is the most comfortable design we have found to wear inside of any boot when additional joint support is necessary. The support's breathable Train Active knit is anatomically contoured and fits the foot smoothly and perfectly. The compression effect of the knit aids the circulation and activates the surrounding musculature. This support stabilizes the foot without restricting mobility and is ideal for use during sporting activities. It fits into any boot and helps prevent further injury to the ankle during training or your next hunting expedition. Order Left or Right in sizes 1-6. See measurment chart.