由 Justin Ault 
**How to Choose the Montana Fly Company MFC Sundell’s Rainbow Waterproof Fly Box Medium**
As an avid angler, having the right fly box is just as crucial as selecting the perfect fly. The **Montana Fly Company (MFC) Sundell’s Rainbow Waterproof Fly Box Medium** is a standout choice for fly fishermen who demand durability, organization, and waterproof protection. In this guide, we’ll break down why this fly box deserves a spot in your gear and how to choose the right model for your needs.
### **1. Why Choose a Waterproof Fly Box?**
Fly fishing often involves wet conditions—whether wading in rivers, fishing in the rain, or dealing with accidental drops in the water. A **waterproof fly box** ensures your flies stay dry, rust-free, and ready for action. The **MFC Sundell’s Rainbow Fly Box** features a **silicone gasket seal** that keeps moisture out, protecting your delicate dry flies, nymphs, and streamers.
### **2. Size & Capacity: Is the Medium Right for You?**
The **Medium-sized Sundell’s Rainbow Fly Box** measures **4.75 x 3.25 x 1.25 inches**, making it compact enough for a vest or sling pack yet spacious enough to hold **80-100 flies**, depending on size. It’s ideal for:
– **Day trips** where you need a variety of patterns.
– **Travel-friendly storage** without bulk.
– **Organizing flies by type** (dry flies, nymphs, emergers).
If you carry a larger fly collection, MFC also offers a **Large version**, but the Medium is perfect for most anglers who prefer efficiency over excess bulk.
### **3. Secure Fly Retention & Organization**
A good fly box should keep flies **secure yet accessible**. The Sundell’s Rainbow features:
– **Slotted foam inserts** that grip hooks firmly, preventing tangles.
– **Adjustable compartments** for different fly sizes (size 8-22 recommended).
– **Clear lid design** for quick identification without opening the box.
This design is especially useful when switching flies frequently in fast-moving water.
### **4. Durability & Rugged Construction**
Fly boxes endure rough handling—bouncing in packs, getting stepped on, or surviving falls on rocky banks. The **MFC Sundell’s Rainbow Fly Box** is built to last with:
– **Impact-resistant polycarbonate shell**.
– **Stainless steel hinges** that resist corrosion.
– **Reinforced latch** to prevent accidental openings.
Unlike cheaper plastic boxes that crack under pressure, this one is built for years of use.
### **5. Aesthetics & Visibility**
The **Rainbow Trout-themed design** isn’t just for looks—it’s highly **visible** in low-light conditions or if dropped in foliage. The bright colors make it easy to spot in your gear, reducing frustration on the water.
### **6. Who Should Buy This Fly Box?**
This box is perfect for:
– **Fly fishers who wade or fish in wet climates.**
– **Anglers who prioritize organization and quick access.**
– **Those who want a durable, long-lasting fly storage solution.**
If you prefer minimalist setups or only carry a few flies, a smaller box may suffice. But for versatility and reliability, the **Medium Sundell’s Rainbow Fly Box** is a top-tier choice.
### **Final Verdict**
The **Montana Fly Company MFC Sundell’s Rainbow Waterproof Fly Box Medium** combines **waterproof security, smart organization, and rugged durability**—everything an angler needs on the water. Whether you’re chasing trout in Montana or bass in backcountry streams, this fly box ensures your flies stay dry, sorted, and ready for action.
**Pro Tip:** Pair it with **KyleBooker’s premium fly assortments** for a complete, high-performance setup. Tight lines!
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