# **Kylebooker Semperfli Floss 2/0 400D Yellow – Fly Tying Materials: Is It Worth the Investment?**
Fly tying is an essential part of fly fishing, allowing anglers to create custom flies that mimic natural prey. One of the key materials in this craft is floss, which is used for body construction, segmentation, and adding vibrant colors to flies. The **Kylebooker Semperfli Floss 2/0 400D Yellow** is a popular choice among fly tyers, but how does it measure up in terms of quality and value for money? In this review, we’ll explore its features, performance, and overall cost-effectiveness.
## **Overview of Kylesbooker Semperfli Floss**
The **Semperfli Floss 2/0 400D** is a high-density floss designed specifically for fly tying. The **Yellow** variant is particularly useful for imitating insects like mayflies, caddisflies, and other bright aquatic species. With a thickness of **2/0 (400 denier)**, it provides excellent coverage and durability while maintaining a smooth finish.
### **Key Features:**
– **High-Density Material (400D):** Ensures strong, consistent wraps without fraying.
– **Vibrant Color Retention:** The bright yellow hue remains vivid even after repeated use.
– **Smooth Texture:** Allows for easy wrapping and layering on hooks.
– **Versatility:** Suitable for various fly patterns, including nymphs, streamers, and dry flies.
## **Performance & Durability**
One of the biggest concerns with fly-tying floss is its ability to hold up under tension and resist fraying. The **Semperfli Floss 2/0** performs exceptionally well in this regard. Unlike cheaper alternatives that may split or unravel mid-tying, this floss maintains its integrity, making it ideal for intricate patterns.
Additionally, the **400D thickness** strikes a good balance between bulk and precision. It’s thick enough to create a solid body in fewer wraps (saving time) but not so bulky that it obscures finer details.
## **Comparison with Other Brands**
When assessing value for money, it’s important to compare the **Semperfli Floss** with alternatives like **UTC Ultra Thread**, **Danville Flymaster**, or **Veevus**.
– **UTC Ultra Thread** is thinner (70D or 140D), making it better for delicate flies but less efficient for quick builds.
– **Danville Flymaster** is a strong competitor but lacks the same color vibrancy.
– **Veevus** offers excellent strength but at a higher price point.
The **Semperfli Floss** stands out for its **affordability without sacrificing quality**, making it a solid middle-ground option.
## **Price & Value for Money**
The **Kylebooker Semperfli Floss 2/0 400D Yellow** is priced competitively, often coming in at **$5–$8 per spool**, depending on the retailer. Given its durability and performance, it offers excellent **long-term value**. Unlike cheaper floss that may require frequent replacement, a single spool of Semperfli can last for dozens, if not hundreds, of flies.
## **Final Verdict: Is It Worth It?**
For fly tyers looking for a **reliable, vibrant, and durable floss**, the **Kylebooker Semperfli Floss 2/0 400D Yellow** is a **great investment**. It outperforms budget options in durability and matches premium brands in quality while remaining affordable. Whether you’re tying simple nymphs or intricate streamers, this floss delivers consistent results.
### **Pros:**
✔ Strong, fray-resistant material
✔ Bright, long-lasting color
✔ Good thickness for efficient tying
✔ Affordable compared to high-end brands
### **Cons:**
❌ Slightly thicker than ultra-fine threads (may not suit all patterns)
### **Conclusion:**
If you prioritize **quality, color retention, and cost-effectiveness**, the **Semperfli Floss 2/0 400D Yellow** is an excellent addition to your fly-tying materials. It’s a versatile, high-performing product that justifies its price, making it a **smart buy** for both beginners and experienced fly tyers.
Would you recommend it to fellow anglers? Absolutely!