Our dependable Boundary Waters Tarps are the best available for canoe country travel. They have withstood rocks, rain, wind, tree branches, and all the abuse our staff can dish out. They're constructed of coated ripstop nylon with a reinforced packcloth center square, and nylon tape binding on all edges. 3/4 inch nylon webbing edges and evenly spaced loops (in place of grommets which often fail). Center quad loop and pole patch. Made in Minnesota to outlast all others. Tarps pack down small!