Quick Answer
Measure your dog's neck circumference at the widest point, then add two fingers' width for comfort. Use this measurement to choose the correct martingale collar size, ensuring the limited-cinch design fits snugly without choking.
Why Martingale Collar Sizing Differs
Martingale collars are designed to tighten slightly when your dog pulls, preventing them from slipping out. This means the fit is more critical than with a standard flat collar. A collar that is too loose can slip off entirely, while one that is too tight can cause discomfort or breathing issues.
The Chain Reaction™ Martingale Dog Collar from Ruffwear combines reflective Tubelok™ webbing with a short stainless steel chain section. The chain is part of the limited-cinch mechanism, so the collar's overall length and the placement of the chain matter for correct sizing.
Step-by-Step Martingale Collar Sizing
- Measure neck circumference: Use a flexible tape measure around the widest part of your dog's neck, just behind the ears and below the jaw. Keep the tape snug but not tight. Check that the tape is level all the way around; a tilted measurement can add or subtract inches.
- Add two fingers' width: Slide two fingers between the tape and your dog's neck. This extra space ensures the collar won't be too tight when the martingale cinches. If your dog has a thick coat, add a bit more room to account for fur compression.
- Compare to size chart: Use the measured circumference to select the corresponding size from the manufacturer's size chart. For the Chain Reaction Collar, note that the chain section is not adjustable, so the webbing adjustment range must cover your measurement. If your measurement falls between sizes, choose the larger size for safety and adjust the webbing tighter.
- Test the fit: Put the collar on your dog and adjust the webbing so the collar sits high on the neck. The limited-cinch should tighten only when your dog pulls, not rest constantly tight. You should be able to fit two fingers under the collar when it's relaxed, but not when it's fully cinched.
- Check for slipping: Give the collar a gentle tug to simulate pulling. The martingale should tighten and prevent slipping, but never choke. If the collar slips over your dog's head, it's too loose. Re-measure if the collar slips; a martingale that is too loose defeats its purpose.
Product Details
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Chain Reaction™ Martingale Dog Collar: The Chain Reaction Collar is a martingale collar with a short section of stainless steel chain and reflective Tubelok™ webbing. The chain section is part of the limited-cinch design, so measuring accurately ensures the chain sits correctly and the collar functions as intended.
Chain Reaction™ Martingale Dog Collar
