The difference is how the paper towel is made. Most paper towels are made of standard (or virgin) paper made from the pulp of softwood trees, and those fibers are then bleached to create a uniform white color.
The key difference is that Bravo paper towels are made with cellulose fibers from recycled paper pulp, which is infused with a special binder that gives it superior absorption capacity, wet strength, and durability.