Once on, the deep pressure vest promotes calm, reduces agitation, and increases focus and concentration. Its comforting embrace gives us the sensation of a big hug. This vest offers proprioceptive stimulation; its firm and soft pressure allows the child to become more aware of his body in space. It is this awareness that causes a sense of calm and regulates the energy level of the child. The vest attaches with Velcro® to allow a perfect fit on the body, but also to adapt the pressure to the comfort of the user. Large size has an adjustable chest circumference up to 107 cm. Length (shoulder to waist) is 58 cm. For ages 14+ years. Details: Black Available in multiple sizes Pressure vest feels like a big hug and offers proprioceptive stimulation Easy to clean (removable foam) Promote sustained attention and concentration Made from neoprene, designed to let the skin breathe Size Information: Small - 11.5" x 7.5", ages 5 to 9 years Medium - 11.5" x 9", ages 10 to 13 years Large - 13.5" x 10", ages 14 and up