Buying socks is pretty simple – they need to fit your feet. If you are buying socks for work, then most of us can buy them without a lot of thought. But if you are buying socks for a marathon, ultra, or adventure race, you need to be attentive to how they fit.
The heels, toes, and length should fit snugly without sagging or being stretched too tight. Socks that are too big will bunch up and cause friction and skin irritation. Socks that are too small can cause the toes and joints to rub harder against the socks. Turn the socks inside out and look at the toe seams. Avoid those with bulky seams because they can rub, causing hot spots and blisters. After buying socks be sure to try them on with your shoes or boots to be sure they fit together and are not too tight. Remember also to discard socks when they become threadbare and too thin to provide their advertised benefits. The heels of your socks are a good indication of the amount of padding and loft.
The right sock is one that fits your foot and fills the inside of the shoe. Being too tight or too thick can constrict circulation and lead to problems, especially in cold weather. Rubbing can lead to hot spots, which lead to blisters. Changing to thinner socks can cause extra movement of the foot inside the shoe, leading to friction, hot spots, and you guessed it, blisters.
Many people will pick a brand of socks and stick with them. That’s fine, but remember, socks manufacturers have made tremendous advances in sock construction. There are many fantastic socks being made and you owe it yourself to check them out.