Lefty's No-Slip Loop Knot

Lefty's No-Slip Loop Knot
A no-slip loop knot lets large flies move freely even if they are tethered to heavy monofilament line. Ross Purnell photo

This knot is one of the many improvements Lefty Kreh has made to the sport of fly fishing. It is much stronger than the clinch or improved clinch but more important, allows the fly to move more freely than with a clinch-type knot, especially if you're using heavy monofilament line (nylon or fluorocarbon).

The downside of the knot is that it's visually bulky and/or distracting to the overall shape of the flyonly a concern if you're using smaller flies and the fish can see the fly in profile. I don't recommend it for dry flies. But if the fish are likely to be chasing the fly, or you're using large flies where the knot size is relatively unimportant, it's the perfect knot to preserve the life and movement of the fly.

It's a must in saltwater fishing for tropical flats species like permit and tarpon, and for bluewater fishing for cobia, mahi mahi, and various other species. I recently used it for tuna fishing with Journey South Outfitters in Venice Louisiana. The connection to the fly was with 60-pound fluorocarbon, so a three-turn no-slip knot was easy to tighten (with pliers of course) and gave the fly plenty of movement. The standard no-slip knot (as shown here) is with five turns around the standing line, but that's for 20-pound-test line or lighter. Use lip balm on the line to help tighten the knot without abrading, and don't make the mistake of trimming the tag end too short. Leave a little tag to be safe.

Tuna
A no-slip loop knot lets large flies move freely even if they are tethered to heavy monofilament line. Ross Purnell photo

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Recommended Articles

See More Recommendations

Popular Videos

Bahamas - Bonefish

Bahamas - Bonefish

Conway casts for his personal best bonefish while fishing the Grand Bahama islands.

Fly Fishing for Taimen in Mongolia

Fly Fishing for Taimen in Mongolia

Finding giant Mongolia taimen and a state of enlightenment.

Casting Backhand in Tight Quarters

Casting Backhand in Tight Quarters

A backhand cast is when you use your backcast to deliver the fly.

 Getting Started In Fly Fishing

Getting Started In Fly Fishing

Getting Started In Fly Fishing

See More Popular Videos

Trending Articles

You don't always catch large trout in these alpine lakes and streams, but even the small ones are brightly colored treasures. Trout

Alpine Lakes for Remote Monsters

Landon Mayer - April 18, 2018

You don't always catch large trout in these alpine lakes and streams, but even the small ones...

As you explore your home water, keep in mind what they are eating to select the best carp flies! Flies

The 15 Best Carp Flies

Jay Zimmerman

As you explore your home water, keep in mind what they are eating to select the best carp...

Best Panfish Flies Flies

Best Panfish Flies

Skip Morris

Best Panfish Flies

Fly-Fisherman Editor Ross Purnell shares his top five best trout fishing destinations in the world. Worldwide

5 Best Trout Fishing Spots in the World

Ross Purnell, Editor

Fly-Fisherman Editor Ross Purnell shares his top five best trout fishing destinations in the...

See More Trending Articles

More Editor's Notebook

Olympic Pole Vaulter May be the Perfect Fishing Partner Editor's Notebook

Olympic Pole Vaulter May be the Perfect Fishing Partner

Ross Purnell, Editor - June 10, 2016

Olympic Pole Vaulter May be the Perfect Fishing Partner

Watch as Giant Trevally engulf Terns. Worldwide

Giant Trevally Eating Terns

Ross Purnell, Editor - October 24, 2017

Watch as Giant Trevally engulf Terns.

How Aluminum Changed Fly Fishing Forever Editor's Notebook

How Aluminum Changed Fly Fishing Forever

Ross Purnell, Editor - July 16, 2015

How Aluminum Changed Fly Fishing Forever

Mass Shotting Victim Lawrence Levine Remembered as FLY FISHERMAN writer and North Umpqua Guide Editor's Notebook

Remembering Umpqua Community College Victim Lawrence Levine

Ross Purnell, Editor - October 03, 2015

Mass Shotting Victim Lawrence Levine Remembered as FLY FISHERMAN writer and North Umpqua Guide

See More Editor's Notebook

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Get Digital Access.

All Fly Fisherman subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine.

Get Digital Access

Not a Subscriber?
Subscribe Now