NOTE - Apple Tree Sewing offers different size range packs. Link is for all sizes together.
"This pattern offers five Grow-With-Me sizes of: 3-12m, 12m-3T, 3T - 6 years (2 moto patch styles), 6-9 youth, and 9-12 youth These knit pants fit as a loose fit tapered pant or jogger on the smaller end of the size range and fit more like a legging/close fit pant as the child grows. The sizes are also adjustable through the use of foldable cuffs/legs and waist band. With a moto style knee patch option and a reversible option there are so many fun ways to create these grow-with-me pants.
PLEASE NOTE: The little kids sizes and big kids sizes moto patch options are slightly different.
This pattern is easy enough for a confident beginner to complete. Making the pattern without moto style patches is the easiest version."