SmartKnitKIDSCompresso-T Deep Pressure Sensory Compression Undershirt - Alternative to Vest

What size would i need for my 10 yr old?

Has the fabric changed since 2019?

Will this help hold in kid boobs on a boy. He’s a bit self conscious with gain of weight from covid

When measuring an infant whose belly is larger than her chest, should I go by the circumference of the largest part of her belly the nipple line?