You can find upholstery webbing in all different types of materials. This is the only webbing I use, because I am not a purist and I don't have time to fuck around with variety. I squeeze this art into my already busy schedule.
In terms of burlap jute such as this, it comes in red stripe, and green stripe. Red stripe is more heavy duty, thicker for more sustainable seating. Green stripe is thinner and often used for seat backs, that don't require as much strength for support. I only use red stripe, because I am lazy. You can too!