If you’re looking for a small, waterproof fly fishing sling backpack in black, here are some key features to consider and a few recommended options:

Key Features to Look For:
1. Waterproof Material – Look for packs made from TPU-coated nylon, PVC, or waterproof zippers to keep gear dry.
2. Compact & Lightweight – Ideal for fly fishing, with enough space for fly boxes, tippet, tools, and a small water bottle.

Small Fishing Backpack Fly Fishing Sling Pack Waterproof Fishing Backpack Black

3. Sling Design – Easy access while wading, with a single-strap or convertible design for comfort.
4. Organization – Multiple pockets, MOLLE webbing, D-rings, and attachment points for gear.
5. Comfort – Padded strap, breathable back panel, and adjustable fit.

Recommended Fly Fishing Sling Packs:
1. Fishpond Summit Sling Pack
– Waterproof & durable
– Multiple storage compartments
– Padded strap for comfort

2. Orvis Sling Pack (Compact)
– Water-resistant materials
– Easy-access fly box storage
– Lightweight & ergonomic

3. Vedcood Waterproof Sling Pack (Budget Option)
– Affordable & fully waterproof
– Multiple pockets & MOLLE system
– Adjustable strap

4. Patagonia Stealth Sling Pack
– Eco-friendly waterproof materials
– Minimalist but functional
– Great for travel & hiking

Where to Buy?
– Amazon (for budget-friendly options like Vedcood)
– Specialty stores (Orvis, Fishpond, Patagonia)
– Bass Pro Shops / Cabela’s

Would you like recommendations based on a specific budget or additional features (e.g., hydration compatible, extra tool loops)? Let me know! 🎣