Lightweight and Sturdy This no pull harness is nice and lightweight but not flimsy. It was made of durable nylon oxford and padded with soft cushion to protect your dog's skin. Breathable air mesh keeps your dog cool during outdoor activities. Dry Quickly If your dog loves swimming, our harness will be a perfect for her/him. It is well made and dry quickly after being made wet. Reflective Strip for Safety The reflective material woven into the harness is fantastically bright when any light hits it. So Vehicles can easily see you and your dog and it'll make all of you much safer if you are out late or early walking. Soft Handle for Better Control The handle is soft on the inside and comfortable to grab. It is easy and quick control of your dog in certain situations, for example, when he/she tries to jump in mud, on people, etc. Quick Release Buckles The 2 side buckles ensure the harness can guard your dog, preventing your excited dog from slipping out. How To Put On: First, make sure both side buckles are in open position. Then, Just slide it over your dog's head and then fasten 2 buckles on the side. Finally, 4 adjustable clips help you easily adjust the harness to a perfect fit for your dog. How To Adjust: Adjustable 4 ways: 2 around the neck and 2 around the body. Work the portion that's underneath until the material buckles into a bit of an upside down U and then pull the tip part sticking up in the direction towards the harness. Size Chart NOTE: Sizing does NOT directly correspond to your pet's breed or weight. Please Measure your dog before ordering. XL -- Neck: 22.0-30.7'' , Chest: 21.3-38.2''