GOOD SLEEP: The original baby swaddle blanket replaces loose blankets in the crib for a safer environment. The swaddle blanket creates a womb-like feeling, it helps provide the baby with a sense of security and consistency and prevents the startle reflex to ensure your baby's best sweet sleep. Selected high-quality materials and exquisite craftsmanship provide mother-like care for the baby, helping them better adapt to the external environment | SAFE AND COMFORT: The two-way zipper system can open from the bottom for easy diaper changes a breeze without undoing the swaddle blanket. Arm and neck openings are sized for a safer fit. Generously and soft-sized swaddle fasteners with velcro provide adjustability for a perfect fit. Generous easy-open leg sack design provides the comforting, enclosed feeling of the swaddle but without limiting leg range of motion. Recognized as "Hip Joint Health" by the International Society of Hip Dysplasia | HIGH-QUALITY MATERIALS: Swaddle blanket is soft, breathable, and a little stretchy for babies tender skin. The fabric of the swaddle blanket can quickly absorb sweat, but also has high resistance to washing and high warmth. It is the best choice for babies. TOG rating 1.5, offering the right comfort, the sleeveless design of the swaddle blanket reduces the risk of overheating and can be layered with warmer sleepwear to resist cooler temperatures | SIZE GUIDE: Our swaddle comes in two sizes to ensure a perfect fit for your baby. Small size is designed for newborns weighing 6-12 lbs, approximately 0-3 months old, and measuring 19-23 inches in length. Large size is ideal for babies weighing 10-18 lbs, approximately 3-6 months old, and measuring 23-26 inches in length. Please check your baby’s weight and length to select the most comfortable size. When in doubt, we recommend sizing up to allow room for growth | QUALITY AFTER-SALES: Before buying, please choose the size of the swaddle blanket according to the baby's height and combined it with the baby's weight and month. Every baby is unique. We offer 30 days refund for no reason and 90 days quality guarantee for any quality-related issues about our baby swaddle blanket. No matter if you have any questions about baby swaddling blankets, please feel free to contact us, and we will provide you with service to your satisfaction, you have no risk to try