SealLine - About Us – Cascade Designs

Gear Protection You Can Count On

Originally developed for the maritime industry, our waterproof dry bags were made to meet the most demanding standards of gear protection. As avid paddlers and adventurers, we recognized the benefits those same levels of protection and performance could offer the paddling world.

With the introduction of our dual-strip closure design in 1986, we created the most waterproof roll-top dry bag closure on the market… and we’ve been making world-class, adventure-ready dry bags, sacks, packs, duffles and accessories ever since.

MADE WITH PURPOSE

Since no adventure is the same, we selectively match materials, designs, and construction methods to make a diverse range of purpose-built products that prioritize durability, weight, packability, and visibility in different ways, providing you with “just right” protective gear ready for any adventure.

MADE WELL

We believe in making our products well, so we’ve spent years expanding and refining our in-house engineering and manufacturing capabilities, making much of our gear in our own U.S. factory with our own RF welding machines and tools. As adventures and needs have evolved, so too have our capabilities and our products, and we’re proud to still make the best protective gear in the industry.

MADE BY US

We’re regular paddlers, engineers, newbie SUPers, industry veterans, cold-water (and longing-for-warmer-water) surfers, skilled technicians, backpackers, designers, urban commuters, and more.

We’re united in our passion for making dependable, protective gear ready for any adventure—our simple mission is to ensure our gear protects your gear while you’re out adventuring.

SIGNATURE TECHNOLOGIES

RADIO FREQUENCY (RF) WELDED SEAMS
Radio frequencies are employed to bond fabric together at the molecular level. This strong, long-lasting, reliably waterproof construction method withstands up to 2x more stress than sewn-and-taped seams, which can fail over time allowing water to pass through the materials.
PURGEAIR™ VALVE
Waterproof, one-way valve vents air trapped in the dry bag while keeping water out. Our innovative valve is more durable and reliably waterproof than two-way fabric membranes and manual open/close valves.
DRYSEAL™ CLOSURE
Our easy-to-use, dual-strip system amplifies roll-top closure protection while making it intuitive to achieve an optimal seal for the best waterproof protection.
SEALLOCK™ CLOSURE
Discreet and easy-to-use dual-track zipper closure seals tight for confident submersible protection.
CONTINUOUS COMPRESSION
Unlike conventional systems that pull against seams, our Continuous Compression system encircles the sack to minimize seam strain, maximizing durability for dependable protection.
EARTH-FRIENDLY MATERIALS
We actively pursue the sourcing of PVC-free alternatives in some of our most popular products. A smaller eco-footprint and premium performance make it a win-win for all concerned.