Two front layers for warmth, similar to a cozy blanket. A single lightweight layer at the back to allow for moisture wicking and airflow, as babies can easily become sweaty.
revent even a minor bump. Zipper cover at the top and the inside to prevent rubbing the delicate skin of your baby.
The fabric is very light.It's only about 0.5lb.It provides a cozy and breathable feeling for your child.
Straddling Legs and widening hip. The baby can play leisurely and carefree before sleeping whether sit or run .When they feel tired they can easy to sleep and don't need to change other sacks.THE MOST IMPORTANT is the bag will not twine when baby turn over
Long zipper extended to hip. It‘s convenient to change diapers when baby fall asleep