Clothes padding

Hi I was just wanting anybody's thoughts about how I could fo about making a fat suit that feels real, like weight and all, that would be about the same size as Manuel Uribe (1500lbs) because when i was little i definitely was able to pretend to be even fatter than that with my grandpas clothes( 9xl) and used every cloth in the house but i dont know what the best way to do it with the weight being somewhat realistic

I recently started using beach balls for padding. Using them in a large size brief under a stretchy fabric shirt really looks quite realistic.

I don't like to pad using in a lot of clothes, I usually pad in briefs and t-shirts.

I'm attaching my latest effort.

Do you fill it with air or liquid?

Has anyone tried sewing in bean bags for weight? Not sure what you'd need to support that, I keep thinking denim, like overalls or something?

I used air. I don’t have anything to support heavier weighted padding.
I like your bean bag idea.