MFC Barred Sexi-Floss is a rugged fly-tying floss designed for spanflex legs that will not rot like rubber legs. It performs under pressure, delivering consistent structure for tying durable wet flies and nymph patterns. Great for Pats Rubber Legs Stones or any wet fly or nymph, plus ribbing and antennas. Super strong with great stretch.

• Barred spanflex legs resist rot, unlike traditional rubber legs
• Suitable for Pats Rubber Legs Stones and other wet fly or nymph patterns
• Supports ribbing and antennas for realistic body segmentation
• Strong with excellent stretch to maintain wraps and tension

For fly tiers, this floss offers predictable performance across tying sessions. The spanflex composition stays flexible yet firm, enabling clean, repeatable results when building multiple flies. It resists rot in damp conditions and accepts multiple wraps without losing shape. Use it to construct legged patterns that require controlled movement and precise ribbing.