If your dog makes walking him a chore instead of a pleasant outing because of his constant pulling, try the Thunderleash from Thundershirt. It is the simpler “no-pull” solution for your dog. It is the leash that doubles as a harness. Because of its ability to fit dogs from 25 pounds to 100 pounds, it is the perfect harness for your growing large breed puppy.  No need to buy another harness every few months as she grows.

This Thundershirt patent-pending design converts from a standard leash to a "no-pull" solution in seconds. Use the “no pull” set up in traffic or when your dog’s interest sets him off. “Squirrel!” The "no-pull" configuration provides a safe, gentle pressure on the dog's torso providing consistent feedback to stop pulling. Easily go back to the standard leash when your dog is calmly walking with you.

• SIZING – 6 feet long for small dogs (up to 25 lbs); 7 feet long for medium and large dogs (over 25 lbs)
• SIMPLE – No training required. No complicated harnesses or head-collars.
• SAFE – Reflective Logos for Added Nighttime Safety!
• ADAPTABLE – Fits all breeds and sizes.
• POSITVE – Recommended by positive-based trainers across the country.
• SOFT-TOUCH HANDLE – For your hand's comfort