100% Cotton. Made in USA.
Measurement
Newborn: Length 12″ (30.5cm), Armpit to armpit 7″ (18cm), Arm hole Ø2″ (5cm)
3m: Length 13″ (33cm), Armpit to armpit 8″ (20.5cm), Arm hole Ø2½” (6.5cm)
6m: Length 14½” (36cm), Armpit to armpit 9″ (23cm), Arm hole Ø3″ (7.5cm)