1The vest design protects the baby's stomach and prevents the baby from catching cold. 2Color cotton fabric, no dyeing, environmental protection and safe, soft and comfortable, warm and breathable. 3Comfortable fabric, comfortable skin-friendly, suitable for baby's delicate skin, interlayer filled with silk cotton, soft and warm. 4Elastic feet cover to prevent the baby's clothes from turning cold, soft elastic ingredients does not hurt the baby's skin. 5The shoulders and side buttons can be opened, and the half-back belly protector is convenient for mothers to change clothes and diapers.