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Unbreakable Martingale Collar

  • Lifetime Guaranteed*
  • Even pressure distribution for gentle correction
  • Prevents pulling for better control
Size: Small/Medium (1.0" wide): 13"-18" adjustable
Color: Black
$37.99
$37.99
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Boss Dog® Martingale Collars provide strength, comfort, and control for your dog’s walks. With even pressure distribution and a secure adjustable fit, they prevent pulling while offering a stylish, durable design. Perfect for ensuring comfort and a great look!
  • Even pressure distribution for gentle correction
  • Prevents pulling for better control
  • Secure and adjustable fit for comfort
  • Durable, stylish design for Boss dogs
  • Promotes a superior walking experience

TEST STRENGTH UP TO

S/M 1,350 lbs (615 kg) L/XL 1,670 lbs (759 kg)

Boss Dog Tactical Products are engineered to withstand the listed force under normal pulling behavior from a dog. However, they are not indestructible, impervious to damage, or guaranteed against failure under excessive force, misuse, or atypical conditions. Any lifetime guarantee claims are subject to inspection and evaluation to determine eligibility under our warranty policy.

We accept returns and exchanges under the following terms:

  • Exchanges (for wrong size or color): A $15 restocking fee and a $10 flat-rate outbound shipping fee will apply.
  • Returns: A $15 restocking fee and a $10 flat-rate return shipping fee will be deducted from your refund.
  • Lifetime Warranty: For warranty claims, please contact us directly for assistance.

Thank you for your understanding and support!

 View Product Details

Dog Collar Size Guide

Measure Twice, Buy Once!

Neck Girth:

Measure around the base of the neck where a collar would naturally sit.

Dog measurement illustration
Size Neck Girth Recommended Weight Best For
S 14-21" 20-40 lbs french bull dog, beagle, pug
M 16-22" 40-70 lbs malinois, greyhound, pitbull
L 18-29" 70-100 lbs german shepherd, retriever, rottweiler
XL 20-31" 100+ lbs great dane, st. bernard, bernese mountain dog

Sizing Tips

✓
If your dog falls between sizes, choose the larger size
✓
Add 2 inches to measurements if your dog has thick fur
✓
You should be able to fit two fingers between the harness and your dog's body

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Dog Collar Size Guide

Measure Twice, Buy Once!

Neck Girth:

Measure around the base of the neck where a collar would naturally sit.

Dog measurement illustration
Size Neck Girth Recommended Weight Best For
S 14-21" 20-40 lbs french bull dog, beagle, pug
M 16-22" 40-70 lbs malinois, greyhound, pitbull
L 18-29" 70-100 lbs german shepherd, retriever, rottweiler
XL 20-31" 100+ lbs great dane, st. bernard, bernese mountain dog

Sizing Tips

✓
If your dog falls between sizes, choose the larger size
✓
Add 2 inches to measurements if your dog has thick fur
✓
You should be able to fit two fingers between the harness and your dog's body
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