FiberWire® Suture, Size 2-0, Blue, 18 in. Length, Tapered Needle 17.9 mm, 3/8 Circle, Polyethylene, For Orthopaedic Soft-Tissue Repair Arthrex AR-7220 FiberWire® is a next-generation high-strength suture constructed with a long-chain polyethylene core for superior durability and handling. Compared to traditional polyester sutures, FiberWire provides enhanced tensile strength, smooth knot tying, and a lower knot profile. Engineered to minimize breakage during knot tying, it is widely used for orthopaedic soft-tissue repairs.