Extra Small. Age = 0-3 months. Weight = <11 lbs. Garment length from the neck down = 21.25 in.

Small. Age = 3-6 months. Weight = 12-21 lbs. Garment length from the neck down = 25.5 in.

Medium. Age = 6-12 months. Weight = 21-28 lbs. Garment length from the neck down = 30.5 in.

Large. Age = 12-18 months. Weight = 28-35 lbs. Garment length from the neck down = 34.75 in.

Swaddlenots are 100% cotton and will shrink if put in the dryer on high setting.

This babe is two months old, 10.5 lbs and wearing an extra small

The babe in this photo is 4 months old,16 lbs and is wearing a small

This baby is 9 months old, 21 lbs and wearing a medium.