Haggar Men's Work to Weekend Hidden Expandable Waist Classic Fit Flat Front Pant

is the elastic on the sides or all around the waist?

I have a belly and need pants that are meant to be worn at the waist rather than on the hips (under the belly). Would these work for me?

What is the width of the cuff on a W40/L32 pant dress or casual pant with expandable waist?

What is the zip fly long in inches?