Posi-Lock textured paracord has a unique ribbed surface that is woven into the outer sheath. Durable and grippy, this unique surface texture enhances knot retention and engagement in cord locks, cam devices, and tensioners. Posi-Lock 3mm accessory cord is constructed of a proprietary blend of polypropylene and polyester threads for maximum UV resistance, high strength, low stretch, and minimal water absorption. All Orange Screw products are made in the USA for our communities, for our families, and for our economy.