Weighted vest light blue/cotton dog print Filling- nylon poly pellets Machine wash and dry Snap closures Size child 5-6 with 3 lbs. Weighted products have been shown to generate proprioceptive input on our bodies. For many people, this input causes the brain to release neurotransmitters like serotonin, dopamine, among others. These neurotransmitters released by the brain have naturally calming effects, which have proven to be beneficial for people experiencing anxiety, stress, or sensory processing issues. Although they do not work for everyone, the individuals who benefit from deep pressure find weighted materials such as vests, blankets, lap pillows and stuffed animals to be very helpful in calming in the daytime hours and increasing sleep at night.