Skip to main content Skip to main content

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

Popular Videos

Fly Fishing for Taimen Trout in Mongolia

Fly Fishing for Taimen Trout in Mongolia

Editor and Publisher of Fly Fisherman magazine Ross Purnell makes the long journey to Mongolia to find and catch giant taimen trout.

Tying the Problem Child Fly

Tying the Problem Child Fly

In this fly-tying video, learn how the Problem Child fly is made.

Benefits of Using a Kayak for Fishing

Benefits of Using a Kayak for Fishing

This video will give you a brief overview of the additional fishing opportunities and benefits of owning a kayak.

See All Videos

Magazine Cover

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |   Subscriber Services

PREVIEW THIS MONTH'S ISSUE

Buy Digital Single Issues

Don't miss an issue.
Buy single digital issue for your phone or tablet.

Buy Single Digital Issue on the Fly Fisherman App

Other Magazines

Special Interest Magazines

See All Special Interest Magazines

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

Get the top Fly Fisherman stories delivered right to your inbox.

Phone Icon

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