Here is a polished, customer-ready version of your waist size chart:
Waist Size Chart
XS: 25–27
S: 28–30
M: 31–33
L: 34–36
XL: 37–39
2XL: 40–42
3XL: 43–45
4XL: 46–48
If you need this combined with your chest chart or formatted as a clean table/graphic for product listings, I can prepare that.