10 Best Cooling Shirt For Dogs 2025 in the United States

The Ruffwear Swamp Cooler Dog Vest is designed to help dogs stay cool during warm-weather activities like hiking and walking. Made from durable polyester with an updated air mesh, it holds water well for evaporative cooling while reflecting heat with its outer layer. This vest is easy to use—you just soak it in water, put it on your dog, and it starts cooling immediately. The inner mesh lining keeps your dog comfortable and dry, and the relaxed fit offers good sun protection with UPF 50+.

It’s also convenient to wear alone or over most harnesses, thanks to a leash portal and side-release buckles. The vest comes in sizes for all breeds, though this particular model is extra small and best suited for small dogs. At just under 3 ounces, it’s lightweight and won’t weigh your pup down. Some users note that while the vest holds water well, the cooling effect may diminish after extended periods in very hot conditions, so re-wetting might be necessary.

The vest’s design focuses more on function than flashy style, which may or may not appeal depending on your preference. If you want a practical, easy-to-use cooling solution that also protects against sun exposure, this vest is a solid choice. It balances durability and comfort, making it well suited for active dogs and outdoor adventures in the heat.

The Ruffwear Swamp Cooler Dog Harness is designed to keep dogs comfortable during hot weather by using an evaporative cooling system. Its polyester outer layer reflects heat while an absorbent middle layer stores water to help cool your dog through evaporation. This cooling method is effective if you regularly wet the harness, but it won’t provide continuous cooling without re-wetting.

The harness includes a padded handle and well-designed chest and belly panels that distribute weight evenly, making it easier to lift or support your dog during outdoor activities. Fit is highly customizable with six adjustment points, which helps ensure it stays secure and comfy on a variety of dog sizes, especially large to extra-large breeds. It’s also fairly easy to put on and take off, which is convenient for daily use. The harness is durable enough for active dogs, thanks to its quality polyester material and solid construction. Reflective trims and a light loop add safety for walks in low light, which is a thoughtful design touch.

Since it requires hand washing, cleaning might be a bit more involved compared to machine-washable options. While it’s primarily a harness rather than a traditional cooling shirt, it serves well for outdoor, active dogs that need both cooling and lifting support. For those seeking a cooling solution combined with a sturdy harness, this model is a solid choice, though other alternatives may provide continuous cooling without the need for re-wetting.

The Spark Paws Sunblock Dog T-Shirt offers a practical way to protect dogs with sensitive skin from harmful UV rays thanks to its SPF 30 sun protection. It’s made from lightweight, breathable fabric that helps keep your dog comfortable and cool during outdoor activities without restricting movement. The material also helps shield your pet from dirt and allergens, which is a nice bonus for dogs prone to skin irritations.

It’s designed for dogs weighing 40 to 60 pounds with chest and neck measurements that fit many medium to large breeds, though smaller or larger dogs might find it less suitable. The shirt is easy to care for since it’s machine washable and dries quickly, making regular use hassle-free. The fabric and construction are solid enough to handle active play, while the simple but stylish blue and mint color scheme is available in a set of two shirts, adding value.

The shirt does not include specific cooling technologies like gel or water-activated elements; it primarily relies on breathability and sun protection rather than active cooling. This makes it a great choice for sunny days and mild heat protection, but less suited for dogs needing intense cooling. This sun protection shirt is well suited for medium to large dogs who spend a lot of time outdoors and need skin protection more than heavy cooling.