From HALO®, this swaddle blanket features: All over jungle animal print 'Back is best' embroidery detail Sleeveless design to prevent overheating Front zip closure Use over regular sleepwear recognized by the International Hip Dysplasia Institute as promoting healthy hip development Premium fabric; no added chemicals Preemie; 14-19" and birth to 5 lbs. NB: 0-3 Months, 19-23" and 6-12 lbs. Small: 3-6 Months, 23-26" and 13-18 lbs. Cotton Machine wash warm on gentle (turn inside out and cloze zipper before before wash)/tumble dry low/Do not bleach, iron or dry clean Imported.