Braided in America using 100% cotton herringbone weave, the Allied Maker Leather Extension Cord also consists of three copper stranded wires covered in PVC insulation and solid brass plug blades housed in an ultra-tough rubber shell. It's all finished wrapped in vegetable tanned leather and hand-stitched with waxed Irish linen thread. Six, 9 and 12-feet options are standard, though lengths can be customized if you so desire.