Fabric Name: FlannelClosure style: zipper shirtDouble layer thickened baby onesie, skin-friendly fabric, windproof and warm, select qualityThis baby fluffy romper is made of high-quality polar fleece and double cotton lining.take care of baby's sensitive skin and comfort for wearFleece warm Jumpsuit coat,full cover zipper design,easy to pull on and take off,convenient to change baby diapers.Actually,newborn baby is easy to catch cold and afraid of cold.The proper thickness romper is great for baby indoor activity or have a nap in cold winter. It is good for outdoor activity in spring and autumn or not very cold winterThis comfortable Jumpsuit is perfect for autumn, spring and winter, Thanksgiving, parties, holidays, photos, baby bathing and daily use. Not only keep warm, but also suitable for different places.