Mule tape is a polyester "ribbon" used to pull cables through a conduit. That belt is made from 8 plaits of of 1/4" mule tape (rated for 400# of pull. I first braided it looser to start with and it was 1 3/4" wide and too thin, so I un braided it all, pulling much tighter. That gave me a 1 1/4" belt with a good "body". This tight of braid doesn't allow the ribbons to lay flat. It worked out well for my 8 year old granddaughter.
https://cajuntiedowns.com/product-category/cajun-pull-line/?product-page=7 This company sells various size and colors but I buy the white and dye it the desired color. I use RIT synthetic dyes. I needed several sizes and colors, so I bought white. So far the synthetic dye has held up well. Their standard dye doesn't stay in synthetics well.
This picture is a turquois and white 6 plait(I think) of 5/8" tape. It made a thick, 1 3/4" wide belt is great for my 16 year old granddaughter. It ended in more of a western style than the other. I have also braided "roping reins" from the 5/8" tape.
JM2C,
Jim