Avoiding blisters: Wearing a running sock that wicks moisture away may prevent a blister from ever developing. Equally flat toe seams will help to prevent blisters in the toe area too. Always wear clean socks for running to help prevent blisters. Twin skin socks provide even more protection against blisters with the dual layer of sock and lining which prevents rub, but the compromise is reduced breathability.
Protecting vulnerable areas: Like the Groundhog, good running socks will have shaped cushioning in the Achilles area and shaped footbed cushioning to support those high impact areas. Extra padding in the toe, heel and ball of the foot will provide good shock absorption as you land.
A good fit: Look for socks which have a y-knit heel which will give a better fit and a supportive arch grip.
Breathability: Good running socks will keep your feet warm in winter and cool in the summer. This is achieved with mesh sections in the socks where cushioning is not required.
