Size Guide

Welcome to our Size Guide! We created this page help you find the most ideal collar size for your pet. Keep in mind, all collars are made-to-order and sales are considered final. Please don't guess your pet’s measurements!

You can get a soft tape measure at any craft store/big-box retailer, you can buy one online, or you can print one out and tape it together. Please do not use a hard tape measure.

Any confusion? Send us an email with any questions or to confirm sizing. We’re happy to assist! hello@hypnoticdog.co

Slip-On (O-Ring) & Martingale Chain Collar Size Guide

Slip On (O-Ring)
Martingale Chain

Instructions

  1. Measure the widest part of your pet's head snugly with a soft, flexible measuring tape.
  2. Widest part of your pet’s head is typically right in front of their ears.
  3. If your pet has larger neck than head, select the larger measurement to ensure a comfortable fit.
*Please do not use a hard measuring tape.
*Please select the head measurement as measured. We accommodate for the size of the beads and attachments on our end

Send us an email with any questions or to confirm sizing! hello@hypnoticdog.co

Video Guide

Am I on the Right Track?

Here are some sample * Head * size ranges for Slip-On/Martingale Collars
Chihuahua Mixes
7"-10"
Pugs
12"-14.5"
French Bull Dogs
13.5"-16.5"
Australian Cattle Dogs
15.5"-17"
Italian Greyhounds
8.5"-11"
English Bull Dogs
18"-23"
Staffordshire/Pitbulls
17"-22"
Doberman Pinschers
17"-19"
Rottweilers
22"-24"
Mastiffs
24"-28"

Buckle Collar Size Guide

Side Release Buckle
Plastic Side Release Buckle

Instructions

  1. Measure the middle of your pet's neck with a soft, flexible measuring tape where you would expect the collar to lie.
  2. Please ensure your dog is standing, while taking this measurement (yes, this matters!)
*Please do not use a hard measuring tape.
*Please select the neck measurement as measured. We accommodate for the size of the beads and attachments on our end
*Do not measure the base of your pet's neck, but the middle.
*Do not measure your old buckle style collar for an accurate fit; beaded collars are not flat fabric collars.

Send us an email with any questions or to confirm sizing! hello@hypnoticdog.co

Video Guide (Buckle Collars)

Collar Comparisons

Slip On (O-Ring) | Slideshow
  • Most popular style
  • Hang ID/tags
  • Suitable for loose leash walking pets due to slip-on nature
  • O-rings available in black, rose gold, rainbow chrome
Martingale Chain | Slideshow
  • Recommended for walking
  • Hang ID/tags
  • Attach leash to welded o-ring, loop tightens and prevents pet from slipping out
  • Martingale chains available in silver, black, rose gold, rainbow chrome
Metal Side Release Buckles
  • Recommended for walking
  • Hang ID/tags
  • Side-release buckles snap on and off with ease
  • Recommended for medium-haired pet for ease of removal
  • Buckle available in silver, rose gold, rainbow chrome with either white or brown biothane*
*Biothane is the material used to secure the buckle in place. It is a stink proof, waterproof, durable poly that is easy to clean.
*Please select the neck measurement as measured. We accommodate for the size of the beads and attachments on our end
Plastic Side Release Buckle
  • Hang ID/tags (through loop or on buckle notch)
  • Allows for more beads on the collar, great for styling your pet
  • Not recommended for walking
  • Select for a more snug fit around the neck, when Slip On/Martingale is not desired
  • Plastic side release buckles snap on and off with ease
  • Strongly recommended for small dog breeds that have small mouths and shorter necks for a more snug fit around the neck for safety
  • Recommended for medium-haired pets for ease of removal
Plastic Breakaway Buckle
  • Recommended for cats
  • Hang ID/tags
  • Plastic breakaway buckles secure into place around the neck
  • If collar catches on anything, twisting or pulling will allow the buckle to break free for your cat’s safety
  • Cannot be used for walking
FI GPS Compatible Slip-on Style
  • Only select if you already have or are planning to buy a Fi Dogs GPS Tracker as this style fits into the Fi GPS Tracker
  • 1” Biothane designed to not stress your Fi tracker
  • Comes with Fi Endlinks that fit right into your Fi tracker
  • Looks best on collars 14” and up due to attachments taking up bead space
  • Hang ID/Tags on D-Ring attached
  • Suitable for loose leash walking pets due to slip-on nature
  • Did you know? Hypnotic Dog is an approved Fi Maker! This means Hypnotic collars have been through 500lb stress tests, quality inspection, and more!
  • Don't have a FI Collar Kit yet? Use code: hypnoticdog50 for $50 off, or click here and the $50 off code will be automatically applied!
FI GPS Compatible Buckle Style
  • Only select if you already have or are planning to buy a Fi Dogs GPS Tracker as this style fits into the Fi GPS Tracker
  • 1” Biothane + 1” Silver Buckle designed to not stress your Fi tracker
  • Looks best on collars 16” and up due to buckle attachments + module taking up bead space
  • Hang ID/Tags on D-Ring attached
  • Recommended for walking
  • Did you know? Hypnotic Dog is an approved Fi Maker! This means Hypnotic collars have been through 500lb stress tests, quality inspection, and more!
  • Don't have a FI Collar Kit yet? Use code: hypnoticdog50 for $50 off, or click here and the $50 off code will be automatically applied!