Purchased for my almost 7 year old son to try with him while working on our home NTI school work during the COVID19 school closures. He was having trouble focusing and getting used to an all-new homeschool routine. He suffers from autism and ADHD. The vest has has worked wonders. I did purchase additional weights for later use. Right now we are using only the weights that came with the vest and so far that is working for him. He doesn’t mind having it on and we make it fun by telling him it’s his “astronaut vest” (he loves anything space). The quality is very good and the velcro closures are strong and should last a long time. The mesh feature on the front of the vest was probably what sold me on it because I wanted him to still be able to wear it comfortably during warmer months. I highly recommend this product. I was also rather impressed by the great customer service I received when calling about purchasing additional weights. The staff is extremely nice and knowledgeable.