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ThinLine Flexible Breakaway Field Safe Headcollar
ThinLine Flexible Breakaway Field Safe Headcollar
Price £64.99 inc VAT

The ThinLine Flexible Breakaway Halter is designed for a very comfortable and secure fit. Know your horse is safe on the field with the Leather break-away piece which is adjustable at the crown. The halter intentionally does not have an adjustable noseband and you might feel the noseband is a little roomy but we designed this for the best in rub-free comfort!

Benefits and Features of our Breakaway Halter

  • Super safe due to the leather breakaway strap
  • Rub-free comfort
  • Roomy Noseband
  • Easy to fit the Flexible Filly Muzzle

Why the ThinLine Flexible Breakaway Halter perfect to use with the Flexible Grazing Muzzle?

Our ThinLine Flexible Breakaway Halter has features to make using and installing the Flexible Filly Muzzle easy. The strategically placed “keepers” for you to attach your muzzle. These keepers ensure your grazing muzzle is secured in the right position. Therefore the muzzle will not shift while also remaining clear of horses’ lips and nostrils.

Too, you can see how the specially designed breakaway halter puts your muzzle in exactly the right place for the greatest comfort for your horse and ease of use for you.

If you would like to order the Flexible Filly Muzzle, you can just click here!


ThinLine ziptie ThinLine Halter close up ThinLine closeup Ziptie halter

Related Products?

  • Breakaway Replacement Piece
  • Better Than Fleece Halter/ Bridle Wraps and  
  • ThinLine Grazing Muzzle
  • Spare Zipties

The Flexible Filly Muzzle will not cause rub marks and is gentle on equine lips and teeth. We understand a breakaway halter for horses while grazing may rub so we designed a set of bridle wraps (sold separately) made of our anti-fungal, no rub! Horse Grazing Muzzle, halter Wraps below.


Thinline flexible breakaway pieceBridle wrapsThinLine Halter Cheeck LinersThinLine Flexible Filly Grazing Muzzle HomeGrazing Muzzle Zip ties


What size to pick for your Breakaway Halter?

These measurements can be compared against a well-fitting halter to determine which size of the ThinLine Breakway Halter will be the best fit for your horse.  Measurements are of the webbing only, they do not include the halter hardware. Hardware is 2″.





Chin x 2


Cheek x 2




Breakaway Leather Crown

Medium Mini


 7cm 9cm 28cm




  14cm 18cm 43cm




15cm 19cm 47cm




 16cm 20cm 51cm



 32cm   17cm 21cm 55cm


Halter measurments

How to attach your Flexible Filly Grazing Muzzle to the ThinLine Flexible Breakaway Halter?


  1. Use the enclosed paper ties or a string to discover the best holes to secure your muzzle to your ThinLine breakaway halter.  The paper ties are a temporary tool allowing you to easily adjust the fit.
  2. Two of the “fins” have a triangle cut out. These attach to the square (side) rings on your turnout halter. Three fins will connect to the noseband, one in the center, the other two fall naturally to the sides of the center.  Three fins will connect to the chin band; one in the center, two naturally to the sides of the center.
  3. First, secure each triangle cut-out fin with one of the enclosed low-profile cable ties.  Do not wrap the fins around the halter, doing so may cause rubs.
  4. When properly installed, the muzzle should be close to but not touching the nose of the horse. If the muzzle is touching the nose simply make the fins under the chin longer, this will lift the muzzle away from the nose.
  5.  Once you are satisfied you have the correct holes aligned to the halter please remove the paper ties or string and permanently secure the muzzle with the included cable ties.
  6.  After finding the best fit for your horse, simply trim the excess fin material just above the top hole being used.  It is fine to wait a day or two to ensure your muzzle is a comfortable distance from your horse’s mouth before trimming. The “keeper” on the cable tie is on the outside of the muzzle and the excess is facing down and trimmed close.

If you have fitted the muzzle properly and the muzzle is the correct size it will work famously. If you find there is too much grazing room be sure your fins are snugly secured to your breakaway halter. The fins should not move along the noseband. If it does simply pull the cable tie tighter.
Want to know more about the ThinLine Flexible Muzzle and prevent laminitis? Click here

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