Truelove BOOST Dog Harness, Reflective, Adjustable, Easy-on, All Weather, Outdoor, Vest, Halter Material : Lightweight, soft mesh webbing, breathable material for an active and motion controlled comfort. Reflective : 3M Scotchlite reflective PU piping on material ensures for great visibility at night. Adjustable straps: Adjustable and in-bedded with reflective material. Ergonomic design makes it easy to put on as it is to take off. Reduces risk of common harness chafing-&gt;irritation of skin by repetitive friction. All-weather feature : Helps keep pet's body temperature cool in summer by releasing excess heat and warm in the winter by retaining heat.