FEATURES OF VOVODOG DOG VEST HARNESS: ❤ NO PULL & NO CHOKE: The sturdy metal D-ring on front and back range prevent your dog from pulling. Pulling pressure is evenly distributed to the body to prevent pulling and choking; ❤ EASY TO ADJUST: Fully adjustable straps at the chest and neck, which allows a customized fits for your dogs growth do not need to always change it; ❤ HIGH RESISTANCE FOR SAFE: Triangular stainless steel ring to connect straps on the back adds the durability of this dog harness, makes it more tear resistant; ❤ EASY PUT ON AND TAKE OFF: With the Quick-Release Buckles, it is easy to put on/ take off the dog harness. The sturdy handle on the back can help you to control and assist your dog; ❤ DURABLE & COMFORTABLE: This durable dog harness design with comfortable lightweight mesh lining with soft sponge padding plate of puppy harness prevents injuries, giving extra comfort and protection. Specification: Size: S-XL Colors: Black, Green, Orange Vest Fabric: Oxford Lining: Sponge air mesh Handle Fabric: Nylon D-Ring Material: Plated metal Buckle Material: Engineering plastic How to choose the size: Choose a right size of harness is essential for comfort and reliability. Before selecting the right size, please measure the girth both of chest and neck. Chest Measurement-Wrap measuring tape around the deepest part of dog's rib cage behind the front legs. Neck Measurement-Wrap measuring tape around the base of neck/top of shoulders. Use Instruction: 1.Unbuckle the chest strap and adjust the neck strap. 2.Keep the D-ring and the handle staying up on the back. 3.Place the neck strap on your dog neck and buckle up then fasten the chest straps in a comfortable position.