This weighted vest was made by my mom for my 5-6 year old son. The bottom has pockets all around and on the top of the shoulders to add weights according to the child's weight. The mesh fabric is designed to allow body heat to escape.
An occupational therapist should calculate the appropriate weighting and decide if this is an appropriate tool to use. There are health considerations to make before placing on a child.
$30 plus shipping costs
Contact Candice@sophtware.com