Weblon is a traditional vinyl laminate, that is a vinyl skin over a woven mesh. For starters, this material is 100-percent waterproof. For a traditional laced-on T-top that is absolutely waterproof, it's tough to beat. If you plan on a banded top, this material will require more hand fitting and sewing, as it is relatively stiff and dimensionally very stable. An advantage is that it is available with different colors on each side. A popular application on T-tops is to have the exterior white, for heat reflection, and the underside colored, both for color accent on the boat and to reduce glare at the helm. It's proven to be tough and durable for the past 20 years, before the advent of newer fabrics, and it still has its applications.