(Length 70cm, suitable baby height 80-90cm/6-18 Months) (Length: 80cm, suitable baby height 90-100cm/2-3 Years) (Length: 90cm, suitable baby height 100-110cm/3-4 Years) (Length: 100cm, suitable baby height 110-120cm/4-5 Years)Please choose the right size according to your baby's height. Our design patent number :6142872. Our sleeping bags have registered patents on appearance, shape, function, etc. in the UK. Generous sack design allows room for kicking. When the baby wakes up,foot openings design more convenient for the baby to walk. This wearable blanket to grow with your baby and make it the perfect swaddle transition product. Toddler Sleeping Bag Without Sleeves - Convenient for kids wearing a thin sleepsuit inside. Good warmth protection, 2.5 Tog perfect for three season use. 3-way long zipper,just pull the two zippers of the bottom, for easy diaper changes. Pull smooth to prevent zipper stuck because of high quality. Healthy Cotton Material: Our all materials and accessories have passed the CPC safety certification and have the CPC certificate. Super soft, 100% safe. Exceeds safety standards.