After much ripping out and procrastination i finally got them done. The multicoloured yarn is Trekking XXL sock yarn and the grey is the now sadly discontinued Sirdar Town and Country sock yarn. They're knitted toe up on 2mm needles using 12 stitch seamless cast on and increasing to 90 stitches. The heel is worked over 50 stitches as recommended by Lucy Neatby. The fairisle pattern is semi-randomly generated by asking whoever was around at the time to choose 3 numbers which determined the number of stitches in each colour and the pattern.