First version of this pattern with different proposals.

60 stitches + Short row heel

I’m very happy with the way they turned out most thanks to this beautiful yarn.
However the leg is too big for me, I think that the XS size (56 sts) should be better.

Old norvegian cast-on
1/1 rib : 10 rounds
Legs : 48 rounds

For the lenght :
Shoe size 37=23cm - 10% = 20.70cm - 5cms = 15.70cm from heel before starting the toe.

The pattern is very clear for a beginner.