The Step-In Flex is an adjustable and easy-to-use mesh harness for dogs – just step in, clip and go! Made from a breathable air mesh, this lightweight dog harness wicks away moisture and keeps your pet cool as they stroll. Quickly adjust this harness to your pet’s unique shape with the 3 sliders on the chest and neck-straps. Personalize your pet’s fit in the Step-In Flex harness for dogs. The 3M™ Scotchlite™ reflective material is perfect for those late evening or early morning walks to make sure your pupper doesn't get overlooked!