Blue, Medium (Ages 4-6) Improve focus during test taking, working at a desk and doing homework. Proprioceptive and deep therapeutic compression at the joints helps kids achieve calm. Great for children with autism, ADHD and sensory processing disorder. Vest easily snaps over clothing and looks fashionable, so kids don't feel like they stick out. Made from a soft cotton and polyester blend, this vest is smooth to the touch, making it ideal for children who otherwise may be sensory defensive. Includes two 1/2 lb weights and four 1/4 lb weights for a total of 2 lbs. Weights are safely positioned in pockets inside the vest and can be added or removed. Ages 2 and up.