The only thing gray clouds mean to you are epic BWO hatches and constant top-water action, because you keep your gear dry with the Fishpond Thunderhead Sling. Made from welded TPU fabric, the Thunderhead will repel water whether it's pissing rain or you take a slider when you're wrestling a big rainbow. The main compartment is fully submersible thanks to a waterproof Tizip zipper closure, while the remaining pockets are highly water-resistant courtesy of their YKK Aquaguard zippers. In terms of storage, the Thunderhead will carry just about everything you need for a full day of steelheading, bonefish hunting, or getting back to your roots on your favorite trout stream. The shoulder strap and back panel feature a breathable mesh to keep the pack cool and comfortable when the suns out, and the integrated net slot keeps your Fishpond net secure and ready to go once you've finessed your catch to shore.