Don't worry, your pet won't feel too hot or uncomfortable to wear over the clothes. Because he dissipates heat with his tongue. On the contrary, it can resist ultraviolet rays and protect its skin better. With a layer made of lightweight mesh fiber, the colorful dog life jacket will keep your furry pet comfortable. It is easy to dry. Our adjustable dog life jacket is buoyant, which can help your dog swim. It's also enhanced to reflect light along the straps, keeping your pet visible at night, dusk and dawn. The jacket features adjustable nylon straps, quick release buckles and velcro at pet's neck and belly. The Velcro closure system around the belly and neck keeps the pet more comfortable and secure.