These pants are designed with the busy little grower in mind. I wanted something that would be comfortable and flexible to move in, the gusset makes it possible for them to bend and wiggle without limitation. They are cloth diaper friendly too! This pattern is 'grow-with-me' style, meaning there are 4 sizes that fit a wide range. The cuffs and waistband fold or extend to fit a child longer than typical clothing. There are options for slim and relaxed fit, and also contoured cuffs on the big kid and little kid sizes. Infant (0-1) fits Newborn to 12 months Toddler (1-3) fits 12 months to 3T Little Kid (2-6) fits 2T to 6Y Big Kid (7-10) fits 7Y to 10Y Detailed photo tutorial included Pattern Level: confident beginner (you'll need a basic knowledge of stitches and working with patterns and fabric). Fabric: This pattern is designed for knit fabric. However, you can substitute either the gusset or the pants front/back (relaxed fit) pieces for woven fabric. The cuffs and the waistband need to have a good stretch/recovery, something with at least 5% lycra/spandex content is recommended. **This is a hand-drafted pattern, the lines may not be perfectly rounded and the instructions may not look "professional", however I do take quality seriously and meticulously go over each aspect of the pattern, please message me if you have any concerns regarding this. Due to the nature of this item, no refunds or exchanges will be given. You are buying a PDF downloadable pattern not a finished item.