Ice sock

An ice sock is a sock filled with ice, used by cyclists participating in brevets (long-distance rides) to avoid overheating. A women's stocking is filled with ice, which the cyclist places inside their jersey on their back.^[1] This is a low-cost and effective method to keep the cyclist's temperature in check and prevent overheating.^[2]

Other mentions of ice socks include cold weather sock products to offer feet protection against cold weather, as well as ice melt socks to prevent ice dams on roofs.^{[citation needed]}