This pattern is for knit longies in newborn, small, medium, large, and extra large sizes, with customizable options for fit, for waistbands and leg cuffs, and for footies.

General measurements (unstretched to slightly stretched)
NEWBORN= WEIGHT up to 11lbs WAIST 11-15 in. RISE 14-15in. INSEAM 5”
SMALL= WEIGHT 11-17 lbs WAIST 12-18 in. RISE 15-16 in. INSEAM 7”
MEDIUM= WEIGHT 15-20 lbs WAIST 12.5-20 in. RISE 16-17 in. INSEAM 9”
LARGE= WEIGHT 20-24 lbs WAIST 13-22 in. RISE 17-18 in. INSEAM 11”
X-LARGE= WEIGHT 25lbs+ WAIST 14-24 in. RISE 18-19 in INSEAM 13”