Series 3 / 3+ Fi compatible martingale collar / custom colors

Please note: adding a buckle will add about 1" to overall size.

XXS: 3/4" wide, neck size 11.5"-12.5"

XS: 3/4" wide, neck size 12.5"–13.5"

small: 1" wide, neck size 13.5"–16"

medium: 1" wide, neck size 16"–18"

large: 1" wide, neck size 18"–23"

If you are unsure of your pup's size, please add the measurements in the notes field during checkout or drop us a line at hello@majordarling.com.

Martingale collars are commonly recommended by trainers, rescues, and shelters because they provide added security without harsh corrections. When fitted properly, the collar tightens only enough to help prevent slipping, then immediately relaxes when pressure is released.

Martingale collars are especially well-suited for:

• Dogs who can slip out of traditional flat collars
• Dogs with narrower heads or thicker necks
• Training and everyday walking where added security is helpful

If you're looking for more flexibility, add a snap buckle to your martingale! We offer 2 buckle options: black plastic and polished brass. Both make on/off easy for you and your dog! Our matte black plastic buckle is made of high quallity, yet lightweight nylon. This keeps noise and collar weight to a minimum while offering curved edges for your dog's comfort. Our polished brass buckle is a showstopper! It adds high shine and style to your dog's look and is built to last. It's a wonderful option for most medium and large, as well as many small size dogs. The tradeoff to this stunning look is that it is a heavier option and so, may not be suitable for pups with small necks/heads or any aches, pains or medical issues that might make the extra weight uncomfortable. If you'd like a personalized buckle recommendation for your pup or have questions, reach out to us at hello@majordarling.com.

Our collars and leashes made from flat webbing can be washed either by hand or machine. We recommend hand washing in the sink with any type of soap (dish soap, shampoo, etc) and laying flat to dry. Please do not machine dry, as this may cause shrinkage.

Please allow 10 business days for us to make and ship your collar.

Our Fi compatible collars are made to order, and returns are subject to a 10% custom order fee to help us cover the extra labor required. Please make sure to measure your pup for correct sizing. We are happy to do fee-free exchanges for different sizes or colors within 14 days of receiving your order.