Woolino 4 Season Ultimate Sleep Sack - size 2-24 months. Used condition. See photos for imperfections. Let baby slumber peacefully in this supersoft organic-cotton wearable blanket lined with Australian merino wool to regulate their body temperature. The bottom zips open wide for easy diaper changes, while snaps create a comfortable fit around the shoulders, from the newborn days to up to two years old. • 35" x 19" • Shoulder snaps; bottom zip closure • Hypoallergenic • 100% merino wool lining • 100% organic cotton