This body harness is secured by two ties: one around the neck, and one around the back. The model is 5'10" and has a 26in waist. This body harness will fit someone of that size or smaller. It was made with acrylic yarn. 

This is a product I'm hoping to offer in the future, but I still need to figure out how to make the sizing adjustible and accessible to as many body types as possible.