Running/ racing muzzles made of a hard nylon material for those dogs who break the lightweight muzzles! They allow your dog to pant freely due to their depth and open basket design making them the first choice for off lead running and activities such as canicross, bikejor and lure coursing.

The gaps in the 103 measure 1 x2cm maximum making them useful to prevent dog scavenging.

A keeper strap can be added to make the muzzle more secure,  the keeper strap is worn as a collar with the muzzle strap feeding through a loop. ensuring the muzzle is held more securely in place, they can be found here


Designed for whippets we have found they fit many types of dogs, usually terriers such as the JRT, Border etc, and below are details of how to measure your dog to see if this muzzle will fit, however if you need any help then click here.


Length: Measure the length of your dogs head in a straight line from behind their ear, to the tip of the nose. The muzzles will fit lengthwise if the dog measures between 17- 20cm approx.


Depth:This is important to make sure your dog can pant freely. Hold a loop of tape over the end of the dogs nose at 26cm to see if they will have enough room to pant. They typically need 4-8cm depth to allow them to pant freely.


The measurements below are the measurements of the actual muzzles, and not the size of dog they will fit. To ensure a good fit you need a good panting depth.

Length 18cm

Circumference 26cm

Basket length 8cm


Please note that dogs with a high prey drive or a history of reactivity/aggression towards other dogs may still be able to inflict injuries whilst wearing muzzles if they are off lead and without your close control.

Tough nylon running whippet muzzle (103T) Small

  • UK postage is with Royal Mail and orders placed before midday are posted the same day. Parcels usually take 1-3 days to be delivered.

    Next day Delivery- orders placed after midday may not be posted until the following day.

    International orders welcome, please check postage costs during the checkout process.

    N.B International Standard is only insured for a value of £20 and posted at your own risk (we will provide proof of posting). International Tracked parcels are fully insured.