It can be hard to get enthusiastic about a sock's performance, but testing these was a pleasure.
The fact that they are small and light improves performance, and although the Pro Warms are more suited for colder days, the Pro Zeros are also pretty cosy. Both are based on Craft's Climate Control System, so an ideal microclimate for your feet is guaranteed. They also have some good features: a mesh panel at the top of the ankle to allow air circulation, soft and plain heels which reduce chafing, and a mid-foot support band.
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