Two colors:
Color A (toe, cuff and stripes) 180-240 m
Color B (stripes) 150-200 m
I suggest one variegated and one solid.
Potentially any combination of solid, semi-solid, variegated or self-striping will work as long av there is no color overlap between the two yarns.

The sizes S, M and L are equivalent to 58, 66 and 72 sts stockinette socks, foot- and leg length is easy to adjust
.