Measurements
Width at widest part
25½, 27½, 29½ inch
Front seam
9, 9½, 10 inch
Inside leg
10½, 11, 11½ inch

Each pamphlet has a different set of recommended yarns. The following are from the King Cole version.

Materials
KING COLE Double Double Knitting
Zip Double Double Crepe, 50 gram balls
or Gren Double Double, 40 gram hanks
3, 4, 5 balls or hanks
Stitch holder
Elastic for waist.

Yarn for Complete set
Main shade 9, 10, 12 balls or hanks
Contrast 1, 1, 1, ball or hank.