Compression socks ✈️

Decathlon compression socks for flights. There's a slight insulation in the foot section. Worn once on a long flight, washed once. However, they are too small/tight for me. Size M, suitable for M/S calves (I'm L). Foot size 35-38.
The only thing is, I don't understand how, but one sock has threads pulled at the toe.
Sigulda or parcel machines (buyer covers).