Blue Banana Girls Floral Bow Footie Pajamas Footed Sleeper Baby Pajamas 95% Cotton, 5% Lycra Spandex Imported Snap closure Machine Wash Offer comfort and softness Sizes are Canadian Sizes. Size 1 Month Newborn fits up to 8lbs and 17". 3 Months fits 8-12 lbs. and 17-21". 6 Months fits 12-16 lbs. and 21-24". 9 Months fits 16-20 lbs. and 24-27", 12 Months fits 20-23 lbs. and 28.5-30.5".