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Why a sock slides down after six months

Short answer: The elastic thread in the shaft loses tension with every wear and every wash. When it can no longer pul...

How a sock cuff holds without squeezing

Short answer: A sock cuff needs just enough tension to hold the sock up and no more. The answer is a wide, soft rib w...

Why silver and zinc are used in socks

Short answer: Silver and zinc slow bacterial growth in laboratory tests. In socks they are used to try to delay odour...

Why a sock creates pressure over the instep

Short answer: The instep is the highest point of the foot, and the shoe presses exactly there. If the leg of the sock...

Why a tight sock does not warm better

Short answer: A tight sock presses the air out of the fabric and squeezes the blood vessels in the foot at the same t...

Why wet socks give cold feet

Short answer: The foot has many sweat glands and little fat padding. If the sock gets wet, heat is conducted straight...

Capillary action explained on a sock

Short answer: Water crawls by itself through narrow gaps. In a sock the gaps between the threads are so small that sw...

Why 40 to 45 covers five shoe sizes

Short answer: The stretch in the sock makes the difference. A leg that can stretch by a third easily covers five step...

Why socks rarely come in half sizes

Short answer: A sock stretches by thirty to fifty percent. That is why one pair can cover several shoe sizes, and hal...

Why the toe seam can be felt in the shoe

Short answer: The toe seam sits exactly where the shoe is narrowest and the foot bends. A few extra millimetres of fa...

How a sock is closed at the toe

Short answer: A sock leaves the machine as an open tube. The toe is closed either with a seam or by the machine linki...