Collar size guide

Measurement Instructions for Current Collar:

Do you currently have a well-fitting collar for your dog? Follow these steps to determine the correct size:

Collar with Buckle Closure:

  • Lay your current collar flat.
  • Measure the length of the collar, excluding the buckle, to the hole you always use.
  • This length represents the neck circumference and will help you choose your new BySjezz® collar.

Collar with Snap Closure:

  • Lay your current collar flat.
  • Measure the length of the collar, excluding both buckles.
  • This length is the neck circumference that you can use to select your new BySjezz® collar.

Neck circumference Measurement:

  • Take the part of the neck where you want the new collar.
  • Use a flexible measuring tape and measure your dog's neck circumference by holding the tape snugly around the neck, not too loose and not too tight.

Width dimensions:

Determine the suitable width size for your dog:

  • Extra Small - 16mm wide - 20-30cm (8 - 12") - Suitable for Chihuahua, Malthezer, Toy Poodle.
  • Small - 16mm wide - 25-35cm (10-14") - Suitable for French bulldog, jack russel.
  • Medium - 20mm wide - 30-40cm (12-16") - Suitable for cocker spaniel, beagle, stafford.
  • Large - 25mm wide - 38-50cm (15-20") - Suitable for boxer, labrador, border collie.
  • Extra Large – 25mm wide – 48-60cm (19”-24”) - Suitable for golden retriever, German shepherd, doberman.

Need help choosing? View our collection of biothane collars here .

For Puppies:

If you have or are expecting a puppy, determine the correct size based on the dog breed:

  • Small breeds (e.g. Dachshund): Choose XS or S with a width of 16mm (possibly with 2 extra holes).
  • Medium/large breeds (e.g. Labrador, Vizsla, Australian Shephard): Choose S with a width of 19mm (possibly with 2 extra holes).

Do you have questions? Please feel free to contact us!