The Fishpond Thunderhead Large Submersible Waterproof Duffel is the gold standard for fly anglers who travel to the edges of the map. Unlike water-resistant bags that merely shed rain, the Thunderhead Large is fully submersible — sealed by Fishpond's self-healing TRU Zip zipper and built from 900D TPU-coated NewStream® recycled fabric that has been trusted by critical service professionals from Antarctica to the Indian Ocean. At 100 liters, it holds everything you need for a week-long expedition: waders, wading boots, layers, fly boxes, and even a 9' 4-piece rod tube stored internally. This is the closeout NewStream edition — same legendary performance, exceptional value.
Don't miss our in-depth Fishpond Thunderhead Submersible Duffel review on the blog.
Fishpond Thunderhead Large Submersible Duffel – Video Review
Fishpond Thunderhead Submersible Duffel In the Field
Submersible vs. Water-Resistant: Why It Matters
Most fly fishing duffels are water-resistant — fine for light rain, not fine for a raft flip or a bag that slides off a boat into the river. The Thunderhead Large is built to a different standard. The self-healing TRU Zip zipper creates a fully waterproof seal on the main compartment, meaning your gear stays dry even if the bag goes under. The front quick-access pocket uses a YKK AquaGuard® water-resistant zipper for fast access to items that don't need full submersion protection. For anglers heading to remote rivers, jungle lodges, or any destination where gear failure isn't an option, this is the bag.
The interior is sized to fit a 9' 4-piece rod tube — a detail that matters enormously when you're checking bags on bush planes or small charter flights where rod tubes can't go in the overhead. Two sets of included Lariat gear straps position on both sides for lashing to raft frames or cargo racks, and the daisy chain webbing adds more attachment points for rod tubes on the outside when you need the interior space for gear.
Fishpond Thunderhead Large Submersible Duffel – Full Feature List
- Fully submersible TRU Zip self-healing zipper on main compartment — not just water-resistant, fully sealed
- 900D TPU-coated NewStream® recycled fabric — bombproof, eco-conscious construction
- YKK AquaGuard® water-resistant zipper on front quick-access exterior pocket
- Interior fits 9' 4-piece rod tubes — carry rods internally for bush plane and charter travel
- Stowable backpack straps — convert to a pack when the road ends
- Braided climbing rope handles — top and side for versatile loading
- Daisy chain webbing attachment points — for external rod tubes and gear
- Includes 2 sets (4) of Lariat gear straps — position on both sides for raft frame and cargo rack lashing
- 100L / 6,102 cu. in. capacity — fits a full week of expedition fly fishing gear
Fishpond Thunderhead Large Submersible Duffel Specs
- Volume: 100 Liters / 6,102 cubic inches
- Dimensions: 30" x 15" x 15"
- Weight: 5.2 lbs
- Colors: Eco Cutthroat Orange, Riverbed Camo
- Best for: Expedition fly fishing, raft-supported trips, jungle lodges, bush plane travel, multi-day float trips, Dorado fishing, steelhead camps
- Material: Recycled 900D TPU-coated NewStream® fabric