[ Warm Reminder ] Recommend hand wash and washing machine in mild mode, water temperature 40?; and wash separately from dark clothes. Close the zipper before washing and wash it in a laundry bag. so it can keep th sleeping bag long lasting. If you have any questions or your baby has any questions during use, you can contact us at any time (Note: Please confirm the your baby height before ordering.). [ Spacious Bottom Space ] beeweed baby sleeping bags have ample space, which provides enough space for babies who like kicking and those who like to toss and turn around. The baby's legs can move freely in the baby wearable blanket. The medium sleep sack is suitable for babies between 0-6 months and 56-68 cm. The large sleep sack is suitable for babies aged 6-18 months and 65-82 cm. The extra-large sleep sack is suitable for babies aged 18-36 months and 82-95 cm. [ Safe & Comfortable Design ] When you put on sleep sack for your baby, you don’t have to worry about the loose blanket that will easily become distorted when your baby sleeps, making your baby feel uncomfortable, and you don’t have to worry about the blanket covering your baby’s face. This creates a comfortable and safe sleeping environment for the baby. Baby sleep sack should be sleeveless to aid the heat loss and air circulation. The sleeveless design prevents the risk of overheating. [ Convenient 2 Way Zipper ] beeweed designed a 2 way zipper for baby wearable blanket. Unzip the zipper from the top, side or bottom parents can put the baby in baby sleeping bag. Unzip the zipper from the bottom for easy diaper changing. When novice parents get up at night to change diapers for their babies, zipper can help them quickly change diapers. At the same time, we designed a zipper protection device on the top, which will hide the top zipper to prevent the zipper from scratching the baby’s neck or chin. [ 100% Soft Natural Cotton Outer ] beeweed 1.5 TOG Lightweight Baby Sleep Sack, Ultra Soft and Cozy Hand-feel outer with a soft polyester filling. Your baby can layer with warmer sleepwear for cooler months. Generous sack design allows room for kicking, but cannot be kicked off so keep your baby warm, comfortable, and provide a peaceful sleep. This 1.5 Tog lightweight baby sleeping bag is perfect for room temperatures between 20 – 22 degrees. Machine Wash. 100% Premium Cotton.