?Premium Durable: The sea-island cotton fabric has cashmere texture, and its fibers are very slender. When the temperature is high, the fibers will loosen to achieve the effect of ventilation, and when the temperature drops, the fibers will tighten, which plays a role in keeping warm and has a soft touch. Good breathability and sweat absorption, more precious than ordinary cotton, 100% cotton non-fluorescent fabric creates a warm sleeping environment for your baby. ?Perfect Transition from Swaddle to Sleeping Bag:when your little baby grow up day by day, once your baby sleeps poorly with being swaddle, this baby sleeping bag would be a perfect replacement for weaning your baby off swaddling, it kept baby warm and comfortable and safe all night, there is no suffocation risk anymore with loose bedding. ?Safety and Considerate Design: The long sleeves of the sleeping bags keep you warm in winter, and they can be removed to keep your baby from overheating in hot weather.Featuring zipper from bottom to top, and the 3 zippers allow you to change diaper easily and quickly with minimal distractions. ?Sleeping Bag with Legs: It allows the baby to stretch the legs naturally without restraint, and helps the development of the baby's buttocks and legs, very suitable for babies who have just learned to crawl and toddlers. It can also move when baby wakes up. ?3.5 tog sleeping bag: This baby sleeping bag is suitable for use in the cold winter between 0-10°C, and the good constant temperature effect provides the baby with a suitable temperature for sleeping.