Comfy and Soft: Made from 100% organic cotton, our sleep sack with feet are super breathable, lightweight and machine washable. The sleeveless design and TOG 0.5 keep your baby warm and cozy while also reducing the risk of overheating. Smooth 2-Way Zipper: Our sleep sack double zipper makes midnight diaper change easily. The interior zipper guard and top zipper cover protect any scratches or discomfort from baby's delicate skins, ensuring the safety of your beloved baby. Separate Leg Design: No more worries about your baby tripping over a traditional baby sleeping sack in the crib or kicking blankets.The sleep sack provides enough space for kicking but can't be kicked off,tuck feet in at night,little ones stay warm through the night, restful, peaceful sleep for all.Foot openings design of baby sleep sack for better mobility, easy to walk when baby is awake.The baby sleep sack is perfect for your early walkers and toddlers.