Your feet exude moisture. The socks’ job is to manage the moisture so your feet do not feel wet and thereby get cold. Work socks made from synthetic materials are good at transporting sweat away and drying quickly. If moisture can leave the shoe quickly, synthetic materials are a good choice.
Socks with wool content are usually thicker and thereby warmer. Wool also has impressive moisture and temperature-regulating properties. Wool can absorb a lot of moisture, and as a result of the wool’s water-repellent surface, it will not feel wet against the skin. Wool even retains temperature-regulating properties, even when wet. Thick work socks will also usually relieve pressure on the sole of the feet.
While footwear ensures support and stability, socks provide good comfort for skin and feet. The most important tasks for socks are to regulate heat, manage moisture and ensure that the feet are comfortable in the footwear. Comfort is paramount when you are wearing work socks for 10 - 12 hours a day.