The Dive Gear Express Hi-Viz Line is a braided polyester (aka Dacron) material that costs a bit more than generic nylon, but this abrasion resistant high tenacity line has slightly negative buoyancy, resists kinking, and has minimal stretch. Our Hi-Viz line is stronger than #36 nylon line, yet is flat, so you can load extra on the reel.

Traditional braided white nylon line is difficult to see in open water, but our Hi-Viz line stands out like neon, allowing easier line management with nearby divers. The durable color of our Hi-Viz line also remains the vibrant over time, unlike the "wash-out" fading typical of ordinary nylon cave line. View the twenty second video above of two divers on their stop during a training dive to watch the Hi-Viz Blaze Orange line in action.

The choice of blaze orange, chartreuse (yellow-green) or pure white has been studied by human factors experts for other applications such as transportation signage and high-visibility clothing. While we are not aware of any studies for diving applications, those other studies and our own experience provide good guidance for our recommendations. Choose orange for maximum visibility in well lighted conditions, choose pure white for absolute maximum contrast in very low-light conditions. In our opinion, your best compromise choice for all conditions is the chartreuse yellow-green color.

We are often asked 'What is the tested breaking strength?' Unfortunately, there are no standards for the test methodologies, so it's impossible to compare published ratings from different sources. Our supplier tested both our line and a widely used white nylon guideline found on reels, using the same method for each test. The results show both have several hundred pounds of breaking strength, although our line is stronger. Frankly, both are more than strong enough for diving purposes.