This is 1.5" wide x 0.1" thick nylon webbing. Very strong and judging by the small stamp on the buckle the belt can withstand 12 kilonewtons (12 kN) before snapping = 2697.7 pounds. I think if my massive abs is capable of over a ton of side force I must have a way to monetize it. :) Seriously, I haven't worn the belt yet (just gotten it) but it seems very solid for the price and fits my (yes I know) 58 inch waist.