Socks in large sizes and what to look for above 47
Short answer: Above size 47 the problem is rarely the length but the width over the instep and the tightness of the elastic. A sock that is too narrow pulls across the instep long before it is too short.
Width before length
A sock stretches lengthwise without trouble, but across it becomes tight over the instep. That is the place that hurts first in a sock that is too small. See the large sizes in all bamboo socks for men.
The elastic over the calf
A large foot is often followed by a heavier calf. A sock with soft ribbing does not pull, where hard ribbing leaves a deep mark after a day.
The heel has to sit right
If the heel sits too far forward, the fabric folds under the foot and creates pressure. That happens when the size is too small, even if the toes are not tight.
The length of the sock
For large feet a regular length is more comfortable than a short model, because there is more fabric to spread the pressure. Short models also come in large sizes, see bamboo trainer socks for men. See bamboo socks for men.
Frequently asked questions
What do I do if the sock pulls across the instep?
Go a size up. The width is what becomes too small first, not the length.
Are there bamboo socks in large sizes?
Yes, the range covers the usual large sizes. Check the size given on the individual model.
Why does the sock fold under my foot?
Because the heel sits too far forward. That is a sign the size is too small.