6 oz fiberglass cloth, style 1522 with standard, open weave. Generally the product used to cover wooden canoe and kayak hulls. Sized (treated) for epoxy and polyester resins. Fiberglass is measured as weight per sq. yd of material and sold by running yd. 60" is required to cover most canoes You can use 60" wide on a kayak and place on an angle and save. All fiberglass orders are shipped rolled on a tube, hence shipping costs are higher than folded which can create creases in the fabric.