?Perfect for Sensitive Skin?Baby sleep sack for all seasons?No risk of overheating in babies- Made of 100% Rayon Cotton. Super soft, cozy. machine washable. Perfect for babies with sensitive skin. | ?2-Way Zipper?Our wearable baby blanket has a convenient 2-way zipper that allows for easy diaper changes in the middle of the night. To ensure your baby's safety and comfort, we have designed the blanket with an interior zipper guard and top zipper cover that protect their delicate skin. | ?Spacious enough?Perfect fit for arm and neck opening sizes? The carefully designed leg space allows the baby to move freely?But can't be kicked off?So the baby stays warm all night long. Sleeping bags are helpful in promoting healthy hip development. | ?Security Temperature?TOG 0.3 Certified By Labs, our wearable blanket provides the right amount of warmth for your little one(s). No risks of overheating. Stabilizes his or her body temperature. | ?Baby essentials?Baby sleep sacks can help your baby get a longer, more restful night's sleep. They come in 4 sizes,S for 0-6 Months, M for 6-12 Months, L for 12-18 Months, and XL for 18-24 Months. Each Blanket is backed with 60-Day Money-Back Guarantee. You are welcomed to have a try.