Cotton 【Three Types of Cradle】Our toddler carrier sling is suitable for babies from 1 to 36 months. You can choose the appropriate cradle according to your baby's specific situation, including swaddling style, horizontal holding type, and straddle type. 【Ergonomic Design】Our hip baby carriers have obtained the US CPSC safety certification. It is ergonomically designed to keep your baby in an M-shaped sitting position for healthy hip development. 【Wide Shoulder Strap】MISSWISDOM baby carrier has specially widened the shoulder strap, which can be pulled open to wrap around the entire shoulder, reducing pressure on your shoulder and neck. and make you carry your baby without getting pain and tired. 【Extra Adjustment Belt】 Use the chest adjustment belt of the hip carrier to adjust the distance between you and your baby. If it is too large, you can stretch it to bring your baby closer to you and create a sense of more security . 【Easy to Wear】The wrap baby carrier has a less complicated design compared to traditional baby carriers, and is also attached a instruction manual in package. Whether you are a new parent, you can easily take your baby out in just 10 seconds.