The Sereni Calming Vest uses Deep Pressure Therapy (DPT) to stimulate the parasympathetic nervous system to provide a hug-like calming feeling. Designed with adjustable weight pockets and velcro straps for compression, allowing you to adjust both the weights and compression. Refer to the sizing guide for the best match based on your child’s measurements. Size: Large Width: 28-34 in Length: 18-19 in Age: 10-12 Years Includes one weighted bag of 200g. Excellent condition, smoke free home.