The true super Mono. Higher strength-per-diameter than any current nylon Mono. Less stretch than any current nylon mono. Extra strong, thin, and sensitive. Breakthrough strength-to-diameter co-polymer. This is 33% stronger than the average mono. Unprecedented 15% stretch for incredible sensitivity and hook setting power. Thin diameter allows exceptional bait action and high line capacity. Excellent knot and shock strength even when wet. Optimized for baitcast reels, but still castable and manageable on spinning reels.