The Umpqua UPG SILI Streamer Large Lime Fly Box is a popular choice among fly anglers for organizing and storing larger streamer flies. Here’s what you need to know about it:

Key Features:
1. Material:
– Made from silicone (SILI) lining, which securely holds flies in place while allowing easy removal.
– Durable polycarbonate shell for impact resistance and waterproof protection.

2. Design:
– Large size (dimensions typically around 9.5″ x 6″ x 1.5″) for bulky streamers, articulated flies, and intruder-style patterns.
– Bright lime green color for high visibility in low-light conditions.
– Secure latch closure to prevent accidental spills.

3. Interior:
– Slotted silicone compartments (usually 4–6 rows) to keep flies separated and tangle-free.

Umpqua UPG SILI Streamer Large Lime Fly Box

– Deep enough for large streamers (up to 6″ or more).

4. Portability:
– Lightweight yet sturdy enough for travel.
– Fits well in larger vest pockets, sling packs, or boat bags.

Best For:
– Big streamers (e.g., Woolly Buggers, Sculpzillas, Game Changers, Deceivers).
– Saltwater flies (e.g., Clousers, EP Minnows).
– Pike/Musky flies with bulky materials.

Pros & Cons:
✔ Pros:
– Excellent fly retention (silicone grips well).
– Tough construction—resists cracks and water.
– Easy to clean (rinse out debris).

✖ Cons:
– Bulkier than smaller boxes (not ideal for minimalist setups).
– Some anglers prefer magnetic closures for quick access.

Alternatives:
– Fishpond Tacky Fly Box (Large) – Magnetic option.
– Cliff Outdoors Bugger Beast – Similar size, foam inserts.

Final Verdict:
If you carry large, heavy flies, the Umpqua SILI Streamer Box is a top-tier choice for organization and durability. The lime color makes it easy to spot in your gear.

Would you like recommendations for specific fly patterns to store in it?