Harkla’s weighted compression vest for kids with sensory issues, autism, and ADHD combines the sensory input tool with a wearable by applying pressure to sensitive areas of the body. Simply place the vest over your child's clothing, and watch your little one return to feeling grounded and in control. Materials: Soft neoprene, mesh, velcro Measurements: Small: 21-26 inches wide x 13-14 inches long Medium: 24-30 inches wide x 15-16 inches long Large: 28-34 inches wide x 18-19 inches long Product includes: Harkla weighted compression vest 2lbs of weight: (4) 1⁄4 lb weights & (2) 1/2 lb weights