100% Cotton ?PREMIUM MATERIAL: AIMIUKIDS baby sleeping bag is made of nano mineral thermostatic fibers,cotton skin-friendly fabric.It has excellent function of preventing wind and cold. The minky dot texture helps with your baby??s sensory stimulation and makes the blanket more fun. ?MULTI-PURPOSE: AIMIUKIDS toddler sleeping bag can not only use as a baby sleeping bag, but also can use as a baby stroller Blanket, receiving blanket, quilt in baby crib, swaddling for outings. ?TWO-WAY ZIPPER: Easy to urinate, change diapers. And the mother can open the zipper, adjust the temperature of the sleeping bag,give your baby a suitable temperature. ?UNIQUE DESIGN: This blanket is a perfect little nap for your baby to differentiate naptime and bedtime by sleeping in her bassinet at night and sleeping in this bag during the day. ?WASHING NOTE: AIMIUKIDS baby sleeping bag is not only can be washed by hand?? but also can be washed in the washing machine with the laundry bag. The washing temperature must not exceed 30 degrees. Do not iron, do not wash with chlorine.