The NRS Canoe 2″ D-Ring PVC Patch (Blue) has two layers of nylon webbing that secure the D-ring to a 840 denier 42-oz. neoprene base. A strip of neoprene covers the nylon, protecting it from UV and abrasions. Colored Pennel Orca is glued on top to complete the patch. 2″ D-rings are stainless steel, and available in 6″ patches.