Find your best size: Large fits chest circumferences from 81cm to 107cm; Choose the size based on your dog's chest circumference by measuring around the widest part of your dog's chest before purchasing (if you are between sizes, choose the larger size and make sure to reserve 1 inch), recommended for large dogs, such as Labrador, Husky, Boxer, German Shepherd, Golden Retriever, Border Collie, American Pit Bull Terrier, Bulldog and more. No-pull design and better control: Our dog harness has 2 zinc alloy rings on the dog's chest and back; If your dog pulls, you can attach the chest ring to control him, and when you walk with your four-legged friend, you can use the rear ring, no tension on the dog's neck, no choking, ideal solution for dog pulling. Safer and more comfortable: Nylon fabric with 3M reflective material for good visibility when running in the dark; A sturdy handle on the back helps hold the seat belt and secure your dog while driving; Breathable mesh lining with soft sponge padding that prevents injuries and provides extra comfort and protection. Easy to Wear and Adjust: This no-pull dog harness is easy to wear and adjust, quick-release buckles make for easy on and off, fully adjustable chest and neck straps allow for a custom fit for your furry friend, perfect for daily walking, running, jogging, hiking, training, outdoor fun and more.