adidas Performance Ghost Youth Shin Guards

Description

scuffs and pilling on fabric part from use, as shown in photos. hand scrubbed with soap and water and air-dried.
No sizing on item, but I am thinking these are Medium youth. My son had used these from 8-9 years old.
The adidas size chart for Medium says:
ages: 6-9
height: 3'11" - 4" 6"
I measured hard plastic shell at tallest point, height approx: 7.5"width of hard plastic shell at widest point approx: 3.25"