Structure Kat Monofilament Line goes beyond other lines with exclusive M11 Precision Right Winding. Structure Kat Premium Monofilament Line lays on the factory spool in concentric circles so it has Near-Zero memory going on your reel. This line also features the T12 Micro Resin process which creates a slick line for Superior Knots and farther casts. Structure Kat excels across the board and your fishing success will soar when you put this remarkable ultra-premium monofilament on your reel. Tough, smooth, soft and glows like no other.