Designed specifically for running, the M-Tac cropped socks are also great for all other outdoor sports and leisure activities in the hot season. They’ll provide maximum comfort to the athlete, thin elastic cuffs tightly fit the ankle (but not over squeezing), and ergonomically placed pressure points ensure optimal fit and comfort, so socks do not slip off the feet. The fabric provides excellent ventilation. Materials – Cotton 80% -Polyamide 15% -Elastane 5%