NEW NESTING BUCKLE: EASY TO GET ON/OFF- Size L: Neck 19"-25", Chest 21"-35". Just cover the dog harness on the dog from the left side, then snap single side nesting buckle together and secure the plastic buckles. And also just release the three buckles to take off. The upgraded adjustment system with snaps eliminates the need to repeatedly adjust the dog harness, ONCE IS EQUAL TO FOREVER! NO PULL & STURDY BUCKLES: Provide better dog harness for dogs. dog harness is equipped with 2 Sturdy Metal D-Rings for connecting the leash, reinforced on the extensional part. One Front Clip for No Pull control or dog training. One Back Clip for casual walking or jogging. Our plastic buckles withstand 2000N pulling force to ensure it won't be easily damaged. Recommended Large Dogs, such as Shepherd, Newfoundland, Doberman, Labrador, Alaska, German Shepherd, Large Bulldog, etc. DUARABLE & BREATHABLE MATERIAL: All Day Comfort. The heavy-duty vest made of soft cotton fabric with clear texture for the beautiful appearence. Extra durability and wear-ability, suitable for all field use. The soft padding can protect your dog's skin, while the breathable air mesh keeps your dog ventilated and comfortable. We will protect the comfort and health of the dog together with you. COMFTY & SAFE DESIGN: Be the best partner of your pets. The dog harness helps you walk, run and play with your dog together. The arc of the harness back is extended to ensure comfort without scratching the dogs skin. The reflective design all around the dog harness will keep you and your dog safe while going for a walk even at night. MORE DIY IS AVAILABLE: Your style is defined by yourself. Both sides are equipped with Molle system. Additional front morale patch and backside Velcro ID TAG STORAGE. The large area of Hook & Loop Panels allow you freely choose a variety of patches and badges to show your dog's personality. Friendly Reminder: Please refer to the size chart. Please feel free to contact us if you have any questions, we are always ready for providing the best help.