Kreh Loop

The Kreh Loop, also known as the Non-slip Loop, is particularly useful in fly fishing when a more natural movement of the lure or fly is needed. The fixed loop allows the lure to swing freely, mimicking the movement of live bait, making this knot a favorite among both saltwater and freshwater anglers who seek to enhance the lure’s natural presentation, especially when targeting species sensitive to unnatural lure motion.

A key advantage of the Kreh Loop is its strength: it doesn’t slip and often tests close to 100% of the unknotted line strength. To ensure maximum strength, it is critical to use the correct number of turns with the tag end around the standing part (turn direction is important).

• Up to 6 lb test: 7 turns
• 7 to 12 lb test: 5 turns
• 13 to 40 lb test: 4 turns
• 41 to 60 lb test: 3 turns
• Over 60 lb test: 2 turns
• Braided lines: minimum 6 turns

Attention to detail is key as it ensures the knot’s superior strength and reliability across a variety of fishing situations.

The Kreh Loop was popularized by the renowned fishing legend, 'Lefty' Bernard Kreh, an American fly fisherman, author, photographer, and fly casting instructor. Lefty Kreh is considered one of the pioneers of saltwater fly fishing. The nickname 'Lefty' was given to him by childhood friends and actually comes from his propensity for dribbling a basketball left-handed. Due to an injury to his left arm, he actually casts using his right arm! Kreh’s influence on the world of fishing extends beyond this knot, as he helped shape modern saltwater fly fishing techniques.

One of the key advantages of the Kreh Loop over similar knots, like the Rapala Knot, is the positioning of the tag end, which points back towards the lure. This design helps prevent snagging on weeds or debris. The loop’s size can be adjusted while the knot is still loose, but once tightened, the loop becomes fixed. The number of turns made in the knot depends on the strength of the fishing line being used.

While the Kreh Loop is not quite as strong as the Rapala Knot, it retains a significant amount of the line's rated strength. Often, the fishing line itself will break before the knot does, making it a reliable choice for a variety of fishing conditions. The Kreh Loop is also an improvement over the Uni-Knot (Duncan Loop), which both tightens under pressure and has inferior strength.

As with most fishing knots, it is important to lubricate the Kreh Loop while tightening. Applying water or saliva reduces friction and prevents heat buildup, which can weaken the line, especially with monofilament and fluorocarbon lines. Proper lubrication ensures the knot cinches smoothly and evenly, preserving both the line’s strength and the knot’s reliability.